《鉛汞甲庚至寶集成》

All things in heaven and earth originate from the dual energies of Yin and Yang. The essence of lead and mercury (alchemical terms where lead represents original Jing/essence, mercury represents original Shen/spirit) derives from water and earth. Water and earth flourish during the Shen hour (3-5 pm), while Yang energy begins to sprout from the Hai and Zi hours (9 pm-1 am). The Zi hour (midnight) marks the zenith of "Heaven's First Birth of Water" (a Yijing concept signifying the initial emergence of water's virtue). Fire energy arises during the Yin hour (3-5 am), and Yin energy emerges between the Si and Wu hours (9 am-1 pm). The Wu hour (noon) represents the peak orientation of "Earth's Second Birth of Fire" (the flourishing of fire's virtue). Without the interplay of Yin-Yang and water-fire, nothing could take form—a principle that governs the workings of the alchemical furnace.

Why does water, which flows downward, form rain in the sky? How does fire, which rises upward, warm the earth? This occurs because heavenly and earthly energies intermingle: celestial Qi descends into the earth while terrestrial Qi ascends to the heavens. The two energies of Yin and Yang embrace each other, condensing spiritual energy to generate all material forms. All things return to their kind—jade, plants, birds, insects, crustaceans, beasts—among which jade, gold, and silver are most treasured, being natural treasures formed by the primordial Qi of heaven and earth.

Though people value gold and silver, these metals actually originate from cinnabar (mercury sulfide ore). Through refining cinnabar, practitioners extract its essence, separating yellow and white substances. The liquid essence obtained from cinnabar is called mercury. Though named "liquid silver," it doesn't moisten objects and appears waterless, yet contains water's nature within. Spilled, it scatters into uncatchable beads; exposed to fire, it vanishes with the smoke. Only sulfur—recorded in the Minerals section of the Compendium of Materia Medica—can subdue mercury. Thus, alchemists combine sulfur and mercury to create spiritual sand (an alchemical medicine): ancient methods used eight taels of mercury with two of sulfur (Yin ratio) or three taels of sulfur with nine of mercury (Yang ratio), employing water-fire interactions to extract medicinal properties for healing.

Legend tells of the Yellow Emperor encountering the Yellow-Capped Youth at Mount Luohuo, receiving sixty secret formulas for refining gold and silver. These methods have circulated for millennia. Though treasured through dynasties, most practitioners' names have been lost to time. Not until the Baoying era of the Tang Dynasty were these formulas compiled into the Materia Medica, allowing later generations to study alchemical essentials through works like The Mirror Source of the Alchemical Chamber.

This Compendium of the Supreme Treasures of Lead and Mercury documents the mysteries of various miraculous medicines and immortal techniques. Under the entries for jade, gold, silver, and ores in traditional pharmacopoeias, these contents are clearly recorded. Since ancient times, there have been alchemists capable of refining true silver from cinnabar ore (mercury mineral), yet those who mastered such arcane arts mostly kept them secret, making them exceedingly rare in the world.

In my youth, though my family was poor, I delighted in charitable deeds. Because of my strong sense of loyalty and righteousness, I was granted the secret method of "Lingsha Pouring and Gushing Spring Long-Life Elixir" by an alchemist. This method is extraordinarily profound, simple, and swift to execute, capable of producing large quantities of silver in a short time. Just like farming, the more cinnabar ore you have, the higher the yield—just as more fields bring greater harvests. The alchemical scriptures say it resembles a hen hatching eggs, seemingly creating something from nothing.

The key to refining mercury: To make mercury stable and unchanging (dry mercury), it must be thoroughly refined; to deactivate mercury (dead mercury), it must be completely solidified. As the alchemical scriptures state, "When the five metals encounter their kind, they solidify; when the eight minerals encounter saltpeter, they decompose." There is also a folk saying: "Sow melons, reap melons; sow beans, reap beans." This method of refining mercury is more reliable than farming, free from droughts or floods. Mercury is extremely difficult to fully solidify—even when burned into vermilion (red mercuric sulfide), it can still revert to liquid mercury. Only when mercury is truly solidified can one be said to have attained the Dao and become an immortal. Once solidified, mercury can be freely crafted into vessels.

The alchemical scriptures record that after successfully refining the "Ninefold Cycled Great Return Elixir," one can use purple-gold powder to transmute mercury into gold or silver. There are many specific methods, among which the "Yellow Sprout Great Elixir" is a supreme treasure refined through the Four Divine Fires, capable of transmuting silver into gold. Some elixirs require twelve years of fire cultivation, while others need only one year. There are also unique materials like solitary cinnabar and solitary sulfur, as well as refining techniques such as the Fourfold Maturation Nurturing Vessel and the Six Jia Flying Hero.

The text also lists numerous precious elixir formulas: the Great Unity Central Elixir, amber arsenic, white numinous cinnabar, golden numinous cinnabar, Great Unity Divine Essence Cinnabar, and others; single-refined mother cinnabar, frost powder, lead frost, and other preparations; methods like the Treasure-Revealing Cinnabar, Divine Talisman White Snow, and Black Numinous Cinnabar; special vessels like the Golden Cauldron Arsenic, White Tiger Vessel, and Black Tiger Vessel; and techniques such as the Vermilion Numinous Shared Vessel and Pouring Cinnabar. Most miraculous are the "Ninefold Cycled Numinous Cinnabar" and the "Nine True Numinous Cinnabar," which, after repeated refinement, form a "Black Mass" that, through fire cultivation, transforms into a supreme treasure.

This passage details the ancient alchemical process known as the "dry mercury method" (干汞法), which transforms liquid mercury into solid elixirs through specific techniques. The procedure involves using substantial quantities of raw materials—ranging from one hundred to ten thousand taels—as a base, cultivated in specially designed containers (called "kui" 匮). After seven days, the material turns bluish-black, and intense heating is applied to concentrate the essence at the bottom, creating a spring-like effusion. This product is called the "Yongquan Kui Dantou" (涌泉匮丹头, "Gushing Spring Crucible Elixir Seed").

The standard ratios are as follows: for every ten taels of Yongquan Kui Dantou, two and a half taels of mercury can be processed, yielding one tael of solid elixir—this is the small-scale method. Scaling up, twenty taels of Dantou can refine five taels of mercury, forty taels refine ten taels, and one hundred taels refine twenty-five taels, all requiring seven days of cultivation.

A more advanced technique, called "Qionghua Yongxue" (琼花拥雪, "Jade Blossoms Embracing Snow"), uses a ratio of three parts mother-cinnabar to seven parts Yongquan Kui material, producing exceptional results. Compared to this, methods like "plum-pit silver" (梅核银) pale in significance.

The process employs eight varieties of dragon-sprout herbs (龙芽草) and sixteen rare medicinal plants, each with specific names. Among the many alchemical techniques, the dry mercury method stands out as the most refined. The successful elixir must then be smelted in a "bright furnace" (明炉), incorporating critical ingredients such as sulfur and iron sand—core steps of the "Nine Perfections Method" (九真之法).

Two pivotal stages ensure efficacy: the "Gate of Wealth and Honor" (富贵关), where dry mercury powder is wrapped in silver foil, mixed in a 3:7 ratio, and melted in the bright furnace into a liquid, followed by the addition of lead oxide (铅黄). These steps—the Wealth-Honor Pass and the Lead-Oxide Pass—are the secrets to unlocking the elixir’s divine potency, boasting an exceptionally high success rate.

The author emphasizes that this method not only brings wealth and prestige but also benefits humanity, making it a priceless arcane art. However, transmission is strictly reserved for practitioners with sincere devotion (道心), righteous character (义气), and karmic affinity (缘分). The technique traces back to two master alchemists from Western Shu—Zhang Fuhu (张富壶) and Yang Jiuding (杨九鼎)—passed down through generations before reaching the author.

Concluding, the author acknowledges that while this is a closely guarded secret, withholding it would betray its purpose of aiding the world. Thus, they have chosen to disclose this method for the greater good.

This passage documents the concrete operational procedures in ancient alchemical practices, focusing on the method of refining medicinal elixirs (ling sha) using sulfur and mercury.

First, one must prepare two taels of pure sulfur (transparent and free of impurities, resembling goose fat) and eight taels of mercury. The sulfur is finely ground before being mixed with the mercury, then milled for half a day until no granules remain visible—a process called "yin copulation" (yin jiaogou). Next, a new iron pan is used to stir-fry the mixture over alternating gentle and fierce flames for another half-day, carefully controlling the heat to avoid smoke, until it turns into a bluish, sand-like substance.

Following this, a specially crafted alchemical vessel (water-fire cauldron) with a capacity of about fifteen taels must be prepared. The vessel should first be coated repeatedly with ginger juice and baked dry, with iron wires fastened around the outer fire cauldron for reinforcement. A sealing paste is made by mixing yellow earth and salt in a 6:1 ratio (known as "six-one mud," liuyi ni), combined with paper fiber and pounded a thousand times before being thickly applied to the cauldron's mouth and left to dry in the shade.

Additionally, the interior of the cauldron must be coated with a mixture of egg white and high-quality ink (called Kunlun ink), dried, and then filled with the refined elixir ingredients. The cauldron's mouth is sealed with a paste of red halloysite and oyster shell powder blended with rice vinegar, tightly bound with iron wires, and repeatedly coated and dried. This sealing method is applicable to various elixir-refining processes.

Finally, a square furnace six inches deep and one foot wide must be constructed, with ventilation holes at the base (arranged according to the hexagram of the Well in the Earth-Wind trigrams). Inside the furnace, three iron nails are fixed at a height of five inches to serve as a stand, while seven cauldrons of water and ten jin of hard charcoal are prepared. Before lighting the fire, the furnace must be thoroughly dried, and a life-saving hook and rope should be suspended above the cauldron as a safety precaution.

This text meticulously records the vessel preparation, material processing, and fire control techniques of ancient alchemy, reflecting the practical methods of Daoist external alchemy (waidan) in its pursuit of immortality. Terms such as "yin copulation" demonstrate how Daoist philosophy analogizes the alchemical process with the harmonization of Yin-Yang principles.

This passage explains the detailed procedures for controlling fire intensity and water methods in ancient alchemical practices, presented in modern terms:

For the firing process, use ten jin (approx. 5kg) of charcoal divided into three batches: First, place three jin of red-hot charcoal at the base of the cauldron (alchemical furnace) after the flames stabilize. Second, add another three jin when the fire reaches halfway up the cauldron. The final four jin can be added in two portions until flames cover the entire vessel base. Then cover the fire with ceramic tiles (using residual hearth heat or dried wheat husk charcoal) until completely extinguished, opening the cauldron the following morning.

Regarding water methods: Before sealing the cauldron, measure seven vessel-volumes of water (originally six and four-tenths volumes) using room-temperature water in bottles—never too cold. Fill only to 50% capacity each time (if boiling becomes too violent, add lead blocks or ceramic shards; another method is to insert burnt lamp wicks to calm the boil), preventing spillage that could moisten the seal and cause cinnabar leakage. If blue smoke emerges from cracks in the cauldron or seal, immediately apply sealing paste with a brush. Keep an ash container nearby for emergencies—quickly immerse the cauldron in ashes if needed, then reseal with medicinal compounds.

Fire timing control: Begin firing during Zi hour (11pm-1am) and cease at Wu hour (11am-1pm); alternatively start at Mao hour (5-7am) and stop at You hour (5-7pm).

For processing cinnabar: After opening the cauldron, slice the cinnabar into thumb-sized cubes with a thin blade and place in thick silk bags. Prepare a five-liter jar with three liters of premium rice vinegar (equivalent to two jin of wine per liter), twenty-one white plums, half-liang (approx. 18g) of bletilla rhizome, half-liang of [missing character], and half-liang of lotus leaf ash mixed with vinegar. Suspend the cinnabar bags in this solution and simmer for twenty-four hours (adding vinegar if it dries, maintaining low heat to prevent overflow). After boiling, rinse with licorice-infused "Yin-Yang decoction" and dry. Then mix half-liang each of minium and lead carbonate with rice vinegar into a paste (called "body-adhering medicine"), applying half evenly to the cinnabar surfaces before drying. The coating must be neither too thick (which diminishes efficacy) nor too thin (causing loss)—using exactly half the prepared amount, reserving the remainder for later use.

This passage describes the ancient alchemical technique of "nurturing fire in a sealed vessel" (养火合子), a method belonging to external alchemy (Waidan). The entire process requires extremely meticulous procedures:

First, prepare forty taels of high-quality silver (either mountain-mine silver or sycee silver will do) and melt it into liquid form. Pour the molten silver from a broom handle, allowing it to drip into water to form egg-sized silver pellets, or alternatively hammer the silver into small cubes. Then evenly coat the silver pellets with a pre-prepared "body-adhering elixir" (a type of alchemical reagent), dry them, and set aside.

Prepare a fire-nurturing vessel (养火合子) produced in Chuzhou, washing its inner walls with borax water before drying. Use red-hot iron wires to make hooks for securing the container, then apply a finger-thick layer of Six-One Mud (六一泥, a sealing compound made from various minerals) to the exterior. Allow it to dry in shade or with gentle heat, ensuring no cracks form.

Layer the bottom of the vessel with silver, place cinnabar blocks (mercury sulfide) in the center, surround them with vermilion (red mercury sulfide), and cover the top with solid silver sheets. Seal the vessel mouth with specially made Kunlun paper (paper thickly coated with egg white and Beijing ink then sun-dried), then use a "mouth-sealing elixir" (a mixture of red halloysite and oyster shell powder blended with vinegar) to close all gaps, ensuring complete airtightness.

Next, prepare the ash bed: use a clean small vat with an iron tripod at the bottom. First lay down paper-money ashes as foundation (alternatively bamboo leaf, cogongrass or mulberry leaf ashes may be used). Prepare six pieces of two-tael sheep shank charcoal (each five inches long). After heating them red-hot, place one piece at the center of the ash bed, position the fire-nurturing vessel on top, then fill the surrounding space with warm ashes until level with the container.

Place another iron frame above the vessel, inserting one red-hot charcoal piece each at the four cardinal directions (zi [north], wu [south], mao [east], you [west]), maintaining a three-finger width distance from the vessel. Finally, cover the entire setup with warm ashes to one palm's height, keeping the charcoal about three fingers' width from the vessel's top. This apparatus primarily serves to control temperature during the alchemical firing process.

This passage describes the ancient alchemical processes of "nurturing the fire" and creating the "Bubbling Spring Receptacle" in Waidan (external alchemy) practice. The detailed procedure unfolds as follows:

First, prepare a lidded crucible (hezi), leaving a three-finger-width space around all four sides for fire. On the first day, add charcoal to the four cardinal directions (north, south, east, west), on the second day to the four intermediate directions (northeast, southwest, etc.), and on the third day to the remaining four directions, repeating this cycle continuously for seven days and nights. Upon completion, open the furnace to retrieve the silver beads, first washing them with soapberry water, then boiling them in smoked plum decoction until they turn white.

The extracted cinnabar mass must exhibit uniform blue-black coloration throughout to be considered successful. Any remaining red hue indicates insufficient firing and requires resealing for further refinement. If under-fired, reduce the nurturing period by one day; if over-fired, extend it by one day. When fully transformed to blue-black, melt it in a bright furnace until liquid, then pour into silver molds to cast ingots. Should the molten cinnabar become too viscous, pour immediately upon melting to prevent evaporation losses.

The melted cinnabar is then cut into thumb-sized pieces, soaked in licorice decoction, and dried to complete the "Bubbling Spring Receptacle" (a foundational alchemical material).

Next, reprocess the crucible: scrub with borax solution and dry thoroughly, attach iron wire handles, and seal the exterior with Liu Yi Ni (Six-One Mud, a sealing compound) before drying. Place the Bubbling Spring Receptacle at the crucible's center, adding mercury in precise proportions (e.g., four parts receptacle to one part mercury). Cover with Kunlun paper and seal again with Liu Yi Ni.

Finally, establish the firing arrangement: fill a small jar 80% with water, secure it with damp earth, and cap with a perforated brick. Position the crucible over the brick's hole, surrounding it with five charcoal blocks (each five inches long and two taels in weight) representing the "Five Direction Fires," spaced three fingers' width away. Suspend two taels of red-hot charcoal horizontally above on a frame, with four additional charcoal pieces arranged directionally around the sides.

This passage details the specific methods for refining mercury and creating elixirs in ancient alchemical practices. It primarily describes two key alchemical techniques: the "Noble Metal Pass" (富贵关) and the "Lead-Yellow Pass" (铅黄关, also called the Golden Splendor Pass 金华关).

The Noble Metal Pass method involves wrapping one tael of dried cinnabar with three qian-weight silver foil, then smelting it in a bright furnace fire to fashion into treasures at will. If oily mercury residue remains during the process, it indicates insufficient fire intensity, requiring two additional days of smelting.

The Lead-Yellow Pass technique is more complex: First take half a catty of high-quality yellow lead (lead oxide), mix it with ginger juice to form a paste, then place it in a silver-melting pot with a lid. Heat until red-hot and pour onto a stone slab to form blocks. After cooling, grind into powder and wash with water to obtain yellow powder as the "pass medicine." Each time, cover one tael of cinnabar with one tael of this yellow powder for smelting. Pour the molten liquid into an oil mold to set, and upon cooling, the supreme treasure is obtained. This pass medicine can be reused.

The supplementary "Chamber Method" (a sealed alchemical technique) mentions several special techniques: the Longevity Method, Great Salvation Method, Lesser Salvation Method, Descendant Guidance Method, and True Dead Sulfur Method. For instance, the Great Salvation Method uses forty taels of vermilion (mercury sulfide) and ten taels of processed cinnabar (synthetically produced mercury sulfide), smelted under specific firing conditions into ingots to nurture mercury.

The Descendant Guidance Method employs ten taels of standard chamber medicine combined with one tael of processed cinnabar block, buried in a medicinal heap with mercury poured over it, nurturing for seven days and nights. If insufficient redness is observed internally, continue the process—the longer the refinement, the better the results. The resulting chamber medicine can grow continuously like a one-year-old infant and be repeatedly used to process mercury.

These methods reflect ancient alchemists' exploration of material transformation, attempting to transmute base metals into precious substances through complex procedures and precise fire control. The frequent appearance of the character "nurture" (养) refers to the process of allowing materials to undergo gradual changes within specific environments.

Here we discuss several specific methods of ancient alchemical practice (Waidan, external alchemy), all involving the refinement of medicinal herbs and metallic minerals to produce elixirs or metals.

The first method is called "Nourishing the Black with the Black" or "Great Salvation Method": Take four liang of chamber material (containers or base ingredients for alchemy) and add one liang of specially prepared cinnabar. If using twenty liang of chamber material, you may nourish five liang of base ingredients. Heat continuously for seven days and nights. When the firing process is complete, open the furnace to inspect—if the color appears bluish-black, the firing is successful. The material can then be melted in a bright furnace into liquid form and cast into ingots. These ingots can be cut into smaller pieces to serve as new chamber material without additional mercury processing, directly transformable into fresh chamber material.

The second method, "Jade Blossoms Surge Like Snow," employs one liang each of green vitriol and mercury in a new iron pot with half a cup of water. If the mercury and vitriol don't form sand-like particles, continue adding water until granulation occurs. For processing ten liang of material, use a large new iron pot with ten liang of vitriol—water quantity is unrestricted until sand forms. Wash away the green vitriol with salted plum juice, dry between thick paper layers, then boil the sand with liquid leached from mulberry ash. The resulting sand becomes fire-resistant. After nourishing in a bubbling spring chamber for seven days, the opened furnace reveals a treasure usable either for fire containment or as mother material to nurture cinnabar into chamber material. Without adding a "dan head" (alchemical catalyst), it can be processed like silver-refining methods in an ash basin to create ingots with lead. Three qian of this prepared sand yields objects of perfect purity.

The third technique, "Black Numinous Cinnabar," combines eight qian of purified arsenic, four liang of five-times-roasted material, half a catty each of ginger and garlic, and forty-nine shelled castor beans—all pounded together. Suspend the arsenic in a gauze bag within a clay bottle of river water alongside the other ingredients, boiling over modulated fire for three fu periods (ancient time units). Dry the arsenic, then blend with two to four liang of mercury, grinding until no metallic specks remain. Seal in a crucible and calcine with ten catties of charcoal using standard cinnabar methods. Upon completion, suspend the product in sheep's hoof root broth for one fu period. Each liang of red material requires one and a half qian of medicament for transformation and can incorporate two qian of silver to form objects.

Finally, three processing baths are described:

First Bath: Immerse red-hot material in human middle yellow (a medicinal substance) for seven days—longer is better.

Second Bath: Grind pinellia tuber, arisaema rhizome, Chinese angelica, ephedra, frankincense, and myrrh into powder soaked in white liquor. Melt the red material into liquid and pour into this bath. After cooling, transfer to the third bath.

Third Bath: Treat with pigeon droppings, wintermelon juice, salt, garlic, vinegar, and leeks.

This passage details specific operational procedures in ancient Daoist alchemical practices. The initial process involves treating materials with various oils (crane oil, red goose oil, and naphtha). The method specifies taking 1.5 taels of material, boiling it in rice vinegar with 3 qian of aloes and 0.3 qian of sal ammoniac, then grinding into powder. This mixture undergoes five cycles of processing before being formed into ingots. Subsequently, it is calcined five times with alum powder, boiled in alum water for three double-hours (6 hours) until slightly blackened, and finally simmered in single-plum water for another three double-hours.

Following this is an incantation summoning celestial deities like the Northern Dipper (Tiangang) and Southern Dipper (He Kui), invoking cosmic rotation and universal transformation. Phrases like "va jī va nī" represent esoteric Daoist mantras without literal meaning, primarily serving to amplify spiritual potency.

The "Sacred Cauldron Long-Life Gushing Spring Repository Method" is then described: Combine 1 jin of premium Chenzhou cinnabar with 2 taels of imported sulfur, mixing thoroughly before placing in a horsetail-sieve-bottomed pouch. Suspend this in a cauldron containing 2 dou of mulberry-ash lye, maintaining a gentle simmer for 21 days without evaporation. A successful "fire-subduing" (fú huǒ) test—when a pellet produces neither smoke nor flame upon heating—confirms stable medicinal properties suitable for repository cultivation.

For the cultivation vessel: Prepare an iron or ceramic box holding half a sheng, preheated and wiped inside/out with ginger juice followed by salt-vinegar before drying. The "Repository Method" proper involves lining the container's base with 1 jin of powdered mountain-stream silver (high-grade) or silver beads. Place the processed cinnabar atop this layer, covered with 4 taels of premium headless herb powder. Separate with Kunlun paper (specialty parchment), fill with moist yellow earth, and seal the lid using red halloysite mixed with honey-vinegar. Secure with cross-bound iron wires before encasing the entire box in half-inch thick salt-clay to dry for furnace placement.

The final "Furnace Method" instructions: Excavate a 1.5-chi deep, 1.4-chi diameter pit in clean earth, fire-dried for purification. Lay four finger-widths of pure mulberry ash as the alchemical furnace bed.

The methods for controlling the firing process in elixir refinement are as follows:

At the initial stage, apply four liang of fire atop the sealed crucible (the alchemical vessel), then cover it with warm ashes to maintain the flames without extinguishing them. Test the fire with grass stalks, replenishing promptly if it dies out. Add fuel at both the Mao hour (5-7 AM) and You hour (5-7 PM) daily, replacing all fuel every second day. After maintaining this firing regimen for seven days, increase each fuel addition to half a jin; after another fourteen days, increase to one jin per feeding; after twenty-one days when the fire achieves full potency, add one and a half jin each time. Once the firing reaches completion, remove the ashes and smelt with ten jin of charcoal fire. Allow cooling before opening the vessel to retrieve the material.

At this stage, separate and sift the cinnabar (primary alchemical material) from the residual silver powder. Unreacted mercury will appear as black iron-like chunks, while successful refinement is marked by carbon-like residues with dry, cracked surfaces. A reddish-purple hue indicates insufficient firing, requiring return to the vessel with one jin of fire for five to seven more days. Test by placing one cinnabar pellet on strong flames—success is confirmed if it liquefies; smoke emission means further firing for five to seven days is needed.

Successful refined cinnabar should be placed in a crucible (specialized alchemical pot) and melted in a wind furnace. For small quantities, pour directly into the vessel to form piles, then quench with mercury. Larger quantities should be cast into tripod vessels. For each jin of tripod vessel, add half a jin of mercury, seal entirely with salt-clay (not too thick), and maintain with half a jin of gentle fire on the furnace for three fu periods (approximately three hours). After completion, test the dried mercury over flame—optimal results show no smoke emission—before finally casting into ingots in the wind furnace for storage.

If crafting tripod vessels proves difficult, follow the aforementioned pile-quenching method within the vessel. For transmuting refined silver into gold, impurities must be removed: melt the cinnabar in a crucible, then alternately add five shelled castor seeds and half a liang of saltpeter, repeating five to seven times until the metallic liquid achieves mirror-like brilliance for successful gold transmutation. If only quenching is intended, impurity removal becomes unnecessary.

(Note: This passage meticulously documents ancient alchemical techniques—fire control, material reaction assessment, and metal purification—embodying Waidan (external alchemy) practices pursuing "transmuting stone into gold." The terms "subdued fire" denotes complete material reaction, while "separation" refers to purification processes.)

This scripture primarily discusses the properties and refining methods of several alchemical materials. Cinnabar (dan sha), a mineral, inherently possesses indestructible qualities. When consumed by those with depleted Qi (vital energy) and exhausted Jing (essence), it can slightly replenish primordial Qi. However, to truly achieve longevity, immortality, and the ability to calm the Shen (spirit) and preserve life, cinnabar must be properly refined. When heated by fire, cinnabar turns to ash, but through a special processing method (the "subdued fire" technique, or fu huo fa), it can transform into yellow silver—a substance with miraculous transformative abilities. It can become light or heavy, change color and form at will, and even ghosts and spirits find it difficult to trace.

Potassium nitrate (ma ya xiao), when treated with plant ash, retains its original weight yet softens all metals. Azurite (kong qing), when taken over time, can make the body light and ageless, enhance memory, and transform copper, iron, lead, and tin into gold. It is primarily found in the copper-mining regions of Yizhou and Yuexi, forming hollow blue stones where the essence of copper accumulates. The best time for collection is mid-March.

Malachite (zeng qing) has similar effects, promoting physical lightness and agelessness while also transforming metals. During refinement, care must be taken not to mix it with verdigris (copper rust). The specific method is: take one liang (approx. 37.5g) of malachite, combine it with one yi (approx. 20g) each of purple-backed begonia, licorice, and green ganoderma, and boil them in a porcelain pot with flowing eastward water (living water) for five days and nights. The fire must be precisely controlled, and the final product is ground into powder for use. Malachite can also solidify mercury and control cinnabar, making it a crucial material for generating golden Qi. If refined into a paste, it can directly transform mercury into silver.

Realgar (xiong huang), when combined with copper, can refine gold and is called "food of metals and stones." Some say it is the seedling of gold. A decoction of realgar refined with herbs can be ingested, but it can only turn copper into silver, not silver into gold. Orpiment (ci huang), after fire refinement, can transmute silver into gold and copper into silver. Arsenic (xin shi), when processed, can also turn copper into silver, but if it becomes desiccated, it loses its efficacy.

All these materials require special "subdued fire" processing (a low-temperature heating method in Daoist alchemy) to retain their essential properties and manifest their metal-transforming effects. The scripture meticulously records the origins, optimal collection times, compounding methods, and key refining points for each mineral, reflecting the profound understanding of material transformation in Daoist Waidan (external alchemy).

This passage primarily discusses the properties and refining methods of various metals and minerals in ancient alchemical practices. Through special processing (grass-subduing method), lead can be transformed into a treasure capable of turning copper into silver, and can also be used to cast cauldrons for alchemical purposes.

Cinnabar (mercury sulfide) and mercury require fire refining, as does "powder frost" (likely a mercury compound). The text lists twenty substances referred to as "gold," but explicitly states that only five are genuine: the gold of returned cinnabar, water-born gold, melon-seed gold, green-bran gold, and grass-sand gold—the other fifteen being false.

Sal ammoniac (ammonium chloride), if it can withstand fire refining without crumbling, can be used to transmute other mineral medicines. However, sal ammoniac destroys the five metals (gold, silver, copper, iron, and tin). If mineral medicines are refined together with "ash frost" (likely a mineral substance), they become unusable. The white-yellow sal ammoniac from Beiteng (a Western Regions toponym) is called the "gold thief"—it can control various medicines, refine realgar and orpiment, and serve as solder for joining gold and silver.

Alum (sulfate minerals) can make iron surfaces take on a copper color. Among these, the black-yellow "dung-resistant alum" cannot be used medicinally—it's only suitable for copper plating. When wrought copper is placed in vinegar and applied to iron, the iron surface takes on a copper hue while remaining iron within.

Hedgehog oil can soften copper and iron.

Chalcanthite (copper sulfate), when refined and ingested, can prolong life and even lead to immortality. It can transform copper into gold and silver, and has alternative names like completion stone, black stone, copper bridle, and chess stone.

Sulfur can melt extraordinary substances like gold, silver, copper, and iron. When refined into liquid and poured into molds, it creates objects colored like goose egg yolks. In immortal recipes it's called yellow sal ammoniac—while it destroys the five metals, it can also counterfeit golden hues. For use, avoid bluish-red or half-white, half-blue, half-red, half-black varieties; select specimens that appear crystalline and translucent internally, as if containing life. The specific method is: take four taels of sulfur, first mix with four liquids—dragon-tail wormwood juice, east-flowing water juice, purple-back mallow juice, and spurge seedling stem juice—stir thoroughly in a crucible, seal the bottom with Six-One mud (special alchemical sealing clay), place crushed sulfur in the pot, slowly add the medicinal liquids, simmer over fire until the liquids are exhausted, then finally add stemona root powder (Chinese medicinal herb).

This passage primarily discusses methods for processing sulfur and mercury in ancient Daoist alchemy, along with some secret techniques for metal transmutation.

Regarding sulfur processing: Take ten taels of sulfur, mix with two jin each of willow catkin powder and cluster grass (both finely chopped), then boil with flowing "eastern river water" (Daoists believed water from the east possessed special properties) for one day and one night. After boiling, remove other herbal ingredients, wash the sulfur with cooked licorice decoction, then grind in a mortar twenty thousand times before use. Sulfur is called the "General" for its ability to dispel evil qi (energy). It turns black when encountering the five metals (gold, silver, copper, iron, tin), and red when meeting mercury.

About mercury's properties: Mercury can neutralize the toxicity of gold, silver, copper, and tin. When properly refined, it can revert to elixir form—prolonged consumption allegedly leads to immortality. Also called quicksilver, it dissolves gold and silver into paste, used anciently for gilding objects. First detoxify by boiling with natural juices of purple-backed mallow and fleeceflower root for one day and night. For every ten taels of mercury, use seven yi (ancient weight unit) of each juice.

Other mercury characteristics include: solidifying upon contact with lead, coagulating with sulfur, dispersing when ground with jujube pulp. Alternative methods can refine it into cosmetic powder or frost powder. Saliva-ground mercury kills lice, polishes bronze, preserves corpses when injected, floats atop gold/silver/copper/iron, and stabilizes when meeting placenta (zǐ hé chē).

The subsequent "hair-pointing secret technique" (a metal surface treatment): Melt seven qian of "red hair" (likely a mineral) with three and a half qian of "human speech" (likely arsenic), then apply slowly as dots. Repeat until achieving optimal bluish-black hue. Honeycomb bubbles indicate excessive dosage. Crushed new bricks in the pot absorb medicinal vapors.

Finally, metal silver-plating methods: Apply paste made from salt and alum, fire until red-hot, then clean with charcoal ash before boiling in plum water. Repeat for best results. Alternative method: First apply paste of three qian alum and seven qian salt, fire intensely three times, then treat with mild plum water three times. Always whiten objects in plum water before plating.

In the preparation of elixirs, the process must be conducted in three stages during the plum rain season. The specific method is as follows: Take one liang of red fur (a mineral), hammer it into square or round shapes, then add half a qian of clipped base silver (a form of silver) and two fen of processed pengsha (a mineral powder). Mix these thoroughly and apply the mixture onto the surface of the red fur.

Use fire to fuse the base silver with the red fur, then hammer it until the surface becomes glossy. Repeat the application of the medicinal mixture and the firing process until the medicine fully permeates the material. Finally, place it in a plum pot (a specialized container) and boil it repeatedly—the more boilings, the better the effect.

For processing gold: Take one liang of gold, combine it with two fen of white alum, one fen of black alum, one qian and two fen of saltpeter, and two fen of salt. Clean the gold thoroughly, apply these medicinal substances, and heat it over fire until the surface turns black. Remove it, immerse it in water, then heat it again. Use a brush to repeatedly treat the gold—the more treatments, the better the result.

Another alchemical method: Take one fen of gold and one fen of mercury, grind them together in the palm of your hand until they form a paste-like mixture. Apply this gold amalgam onto tutongshi (a type of yellow copper ore), heat it until red-hot, then remove and hammer it into shape. This process can be repeated with further applications and firings before finally boiling it in a plum pot.

Master Wuzhen Dongyangzi (a Daoist adept) cautions: The four methods described above belong to the playful arts of immortals and should only be used in emergencies, not as proper cultivation practices. Obsession with these techniques will not only mislead others but also harm virtuous intentions. Those who obtain these methods should reflect deeply.

The method for preparing deer antler glue: Take an appropriate amount of deer antler, soak it in an earthenware jar filled with water for three days, then remove and scrub it with river sand until it turns yellow. Cut it into two-inch segments and soak it in fresh water for another three days. Take a large lidded earthenware bowl, seal it with a mixture of salt clay and old wall soil. Construct a specialized furnace according to the size of the bowl, then boil the antler with the water from the second soaking.

During boiling, continuously heat water in an iron flask in front of the furnace. Whenever the water in the bowl decreases by one inch, replenish it with hot water—never add cold water. Only pure oak charcoal should be used, and the fire must not be extinguished for three days and nights. On the fourth morning, remove the antler and peel off the outer skin while it is still hot—what remains is deer antler frost (an extract of deer antler).

The remaining liquid in the bowl should be boiled until it becomes extremely viscous, then poured into bamboo tubes and hung in a cool, shaded place. After it solidifies overnight, break open the bamboo tube and saw the contents into cake-like pieces for storage.

Another method for preparing glue: Take the antlers of a live deer (not one that died naturally), regardless of quantity, and saw them into three-inch segments. The subsequent steps are similar to the previous method, but the initial soaking and sand-scrubbing steps are omitted—proceed directly to boiling.

This passage documents the ancient Daoist alchemical methods for preparing deer antler glue and medicinal pills. For making deer antler glue, the antlers must first be processed: remove the rough outer skin and soak them in flowing river water for seven days, changing the water daily. After soaking, thoroughly clean the antlers and boil them in a pot. For every five catties of antlers, add half a catty of mulberry root bark, one catty of paper mulberry fruit, two taels of imported sulfur, and two taels of cinnabar during boiling. Throughout the process, hot water should be continually added to maintain the liquid level, boiling continuously for one full day and night (known as "one fu period"). If the antlers haven't softened sufficiently, continue boiling for another day and night. Once done, cool and remove the antlers, then hang them in a ventilated area to dry for medicinal use. The remaining medicinal liquid should be filtered and slowly concentrated over low heat to produce the glue.

Regarding pill preparation: when using honey as a binder, mix medicinal powder and honey in a 1:1 ratio; when using flour paste, combine one catty of medicinal powder with four taels of medicinal paste, with rice flour used in equal quantity to the paste.

The text specifically emphasizes using two pots during boiling—one for the medicinal decoction and another to keep hot water ready for replenishment. These methods originate from the first volume of the Daoist alchemical classic Compendium of the Ultimate Treasures of Lead and Mercury, which preserves precious formulas combining mineral substances (represented by lead and mercury as elixirs) with herbal medicines.

The "Method of Cinnabar-Silver Through Nine Cycles from the Void Source" recorded in Chapter 8, Volume 2 of The Complete Compendium of Lead-Mercury Alchemical Treasures describes an esoteric technique for transforming cinnabar into silver through nine refining cycles. Here we detail the procedures for the first five cycles:

First Cycle Method: Take 1.5 taels of finely ground cinnabar powder and thoroughly mix it with 1 tael of mercury. Wrap the mixture in cotton cloth and suspend it in a solution of limewater mixed with 1 tael of genkwa flower powder, boiling for one day and night. After removal, blend with honey containing genkwa, monkshood, jack-in-the-pulpit, and tender burnet leaves, applying a finger-thick coating. Then wrap with an outer layer of bletilla striata, ampelopsis root, and prickly ash powder mixed with egg white. Finally, cover with "White Tiger powder" (an alchemical term for a specific mineral powder) and seal all seams with clam-shell powder mixed with oil. Place in an earthenware jar and refine with fire for seven days: use 1 tael of fire for the first two days, 4 taels on days 3-4, 6 taels on days 5-6, and 1 jin (16 taels) on the seventh day. The cooled product is the first-cycle elixir.

Second Cycle Operation: Take 2 taels of mercury and combine with cinnabar following the first-cycle method. The herbal boiling process remains identical, then refine in a vessel for fourteen days. Fire control proceeds as: 1 tael first two days, 4 taels days 3-4, 6 taels days 5-6, 8 taels days 7-8, 10 taels days 9-10, 12 taels days 11-12, concluding with 30 taels for the final two days.

Third Cycle continues with 2 taels of mercury combined with cinnabar as before. After sealing, refine for twenty-one days with fire control matching the second cycle: 1 tael initial two days, increasing by 2 taels every subsequent two days until reaching 30 taels for the final two days, completing the full duration.

Fourth Cycle begins by weighing the loss from the previous cinnabar product, replenishing with an equal amount of mercury. After combining through the described boiling method, refine for another twenty-one days. Then prepare a new cinnabar vessel, layering the elixir powder alternately with 10 taels of "Luminous Cinnabar" (premium-grade). Coat the vessel's interior with purple mineral powder mixed with honey, and paint the exterior with fine ink blended with egg white. Seal the container using previous herbal mixtures and White Tiger powder—a special protective method for the elixir. Finally, seal seams with oil-mixed clam-shell powder and refine in a fire chamber with 3 jin of fire for forty-nine days.

Fifth Cycle Method (partially described in the original text) represents a further sublimation process building upon the first four cycles.

This passage details the concrete operational methods of ancient Daoist alchemy (Waidan), primarily divided into several stages:

The first section describes the refinement process of cinnabar (a red mineral): Take five liang of accumulated window dust (mingchuangchen) and mix it with cinnabar, arranging it according to previous cinnabar processing methods. Cover it with five liang of sulfur, and after seven days, remove it. The sulfur treated this way can then be used to extract mercury.

The sixth transformation method involves: taking five liang of the refined substance, layering it with orpiment (a yellow mineral), and sealing it for seven days to produce "Geng" (referring to gold or metallic essence) capable of transmuting metals.

For the seventh transformation: Take the powdered cinnabar from the sixth transformation, layer it with realgar (another yellow mineral), and seal it for forty-nine days. After completion, it can transmute iron into gold.

The eighth transformation: Mix the seventh-transformed cinnabar powder with mulberry bark juice to form millet-sized pellets. Taking one pellet daily with water is said to prolong life.

The ninth transformation: Layer the seventh-transformed cinnabar with ten liang of arsenic and cultivate for seven days. The resulting substance can transmute various metals into treasures.

The subsequent section discusses three grades of the Golden Elixir (Jindan): The first grade enables celestial ascension as an immortal; the second grants longevity without aging; the third can transmute metals and minerals to benefit humanity, known as the "human immortal." It emphasizes these secret techniques must not be casually transmitted—only to suitable recipients, lest misfortune follow. Recipients must possess compassionate intentions and practice frugality.

The final refining secret records precise measurements: Use 1.2 liang of raw gold and 2 liang of imported sulfur. Melt the gold into liquid and cast into blocks, then grind into extremely fine powder. Take seven qian of gold powder mixed with two qian sulfur, grind together, and place in a small porcelain container treated with ginger juice and ink. Cover with multiple layers of treated paper and alum, sealing with red halloysite clay.

This passage describes specific operational procedures in ancient Daoist alchemy, divided into two main parts: the Fire Subjugation Method and the Treasure Nurturing Method.

The Fire Subjugation Method details how to prepare "subjugated sulfur." First, needle sand and magnetite are ground into powder, then mixed with egg white to form a paste before being sealed in a container. This small container is placed inside a larger vessel, sealed with salt clay (a specialized alchemical sealing material) and red halloysite (a mineral). The setup is placed in an ash-filled crucible and calcined over gentle heat—three days with low fire followed by six days with intensified heat. After completion, white alum powder is extracted. The container is cleaned before adding golden sulfur (a sulfur preparation) and raw sulfur, arranged in specific proportional layers, and the calcination process is repeated. Through multiple firings, the final product is three liang and two qian of the "Subjugated Ancestral Treasury" (a specially processed sulfur preparation).

The Treasure Nurturing Method explains the refinement of cinnabar. Select premium cinnabar grains the size of beans, then stir-fry them with treasury powder (the previously prepared medicinal substance) in an oil-free pan over low heat until they turn purple. After cooling, mix with mercury in precise proportions, grind thoroughly, and seal in a container for calcination—three days of gentle fire followed by seven days of intense heat. The resulting purple-gold substance becomes the "Longevity Treasury" (an advanced elixir ingredient). The text notes this preparation can process three liang of cinnabar, transforming it to a lotus-seed-like consistency.

These procedures involve intricate fire control, precise medicinal ratios, and sophisticated sealing techniques, representing essential craftsmanship in ancient alchemists' pursuit of the Golden Elixir (Jindan) and immortality drugs. The entire process demands strict adherence to steps and measurements, exemplifying Daoist alchemy's extreme attention to detail.

The passage describes specific operational methods in ancient Daoist alchemy, divided into three main sections:

The first section explains the method for refining "true gold": Cinnabar and sulfur are ground and mixed together, then placed in a sealed vessel (called gui) to be calcined over a low fire in an ash pit for seven days. The resulting substance can transform mercury into true gold. In practice, one must bury a golden box within the medicinal powder, pour in mercury, seal it with red halloysite clay, and calcine it over gentle heat for a full day and night to produce true gold. However, it particularly emphasizes that this secret method can only succeed when practiced by those with sufficient virtue (De) and karmic fortune.

The second section details the "Golden Pool Immersion Method": A solution called "Flower Pool" (Huachi) is prepared by boiling powdered minerals - green vitriol, yellow vitriol, purple vitriol, and red vitriol - with vinegar. Red-hot golden implements are then plunged into this solution, causing them to develop vibrant yellow-purple luster. After each treatment, the objects must be wiped with dark plum decoction and felt cloth.

The third section presents the "Golden Luster Enhancement Pool Method": A special solution is concocted by simmering a mixture of clear oil, beef tallow, lard, saltpeter, and urine. Golden implements immersed in this pool acquire extraordinary moistness and radiance. The text specifically notes that all alchemical methods must follow the principle of "Yin controls while Yang submits" - first preparing materials through Yin methods, then shaping them through Yang calcination. Using only Yang fire would make substances overly dry, while relying solely on Yin methods would result in dull coloration.

(Note: The "gui" mentioned refers to ancient sealed alchemical vessels, "ash pits" were temperature-control insulation devices, and "Flower Pools" were special solution baths for metal treatment. These methods belong to historical records of ancient alchemical practices. Modern readers should appreciate their cultural value but must never attempt to replicate them.)

This method is truly marvelous: if you wrap cinnabar in gold foil and place it in a sealed container (known as the "kui" method), you can refine gold; wrap cinnabar in silver foil using the same method, and you'll obtain silver. Precious metals form naturally without needing base materials, though adding small amounts as catalysts yields even more exquisite results.

Regarding the preparation of subdued sulfur (fuhuo fan): Take two taels of sulfur, two taels of saltpeter, and three and a half qian of birthwort (Aristolochia debilis), grind them into fine powder and mix thoroughly. Dig a pit in the ground and place the mixture in a jar level with the ground. Insert a red-hot charcoal piece the size of a pellet into the jar. When smoke begins to rise, cover the mouth with four or five layers of damp paper, press down with two square bricks, then bury with earth. After cooling, retrieve the contents—the sulfur will have transformed. For every three taels of alum, add two taels of this processed sulfur, grind into powder, and place in a large crucible (ganguo). Fan the flames until it melts into liquid, then pour into a stone vessel. The resulting substance will possess a jade-like luster.

The method for refining green salt: Place one jin of green salt in a crucible with about two taels of mantis egg cases (sangpiaoxiao), and it will naturally melt into liquid.

Recipe for the Seven Treasures Crucible: Grind white clematis root, bletilla tuber, glutinous rice, jujube pulp, mulberry wood ash, white clay, and red halloysite into fine powder. Mix with water to form crucible shapes, then air-dry before use.

The oral transmission records state: The secrets of refining the Golden Elixir (jindan) and transmuting metals/minerals appear in the latter section. When the Supreme Lord Lao (Taishang Laojun) transmitted these mineral transformation methods, his original intention was to benefit humanity by demonstrating the efficacy of Daoist cultivation and alchemical techniques. However, this wasn't meant to literally transform base materials into treasures, but rather to show that those who practice and ingest according to these methods can truly prolong life. Regrettably, few in later generations encountered these techniques, most being spiritually unready. The wealthy remain attached to worldly glory and sensual pleasures, while the poor habitually deceive—such people cannot cultivate even if they obtain the methods. Even forced attempts at refinement fail without virtuous merit (de) to support them. Thus the Supreme Lord stored these secrets in golden caskets and jade boxes, rarely known to the world. I transmit them only to genuine Dao practitioners who can inherit this legacy for personal and universal benefit. Sincere cultivators may not succeed initially but won't suffer harm. Later, when receiving the critical fire-timing (huohou) instructions from a master—often just a few phrases—and practicing accordingly with proper methods and oral formulas, the kui method finally achieves completion.

(Note: The recurring "kui method" refers to the crucial sealed-reaction technique in Daoist alchemy (waidan) that facilitates material transformation through special containers. "Subdued fire" (fuhuo) denotes medicinal processing through controlled heating to reduce toxicity. The "Seven Treasures Crucible" is an alchemical vessel crafted from seven materials with unique properties.)

I now risk revealing celestial secrets by compiling these orally transmitted formulas and decades of alchemical experience. These teachings contain crucial techniques like the coordinated use of inner and outer furnaces, and the "subduing by fire" process (stabilizing medicinal properties through precise temperature control) — all originally secret oral transmissions. By editing and publishing them, I hope destined practitioners may obtain and jointly cultivate these methods.

To practice alchemy, one must first select sacred mountains, rivers, or pure Daoist temples to establish the furnace. Avoid locations near slaughterhouses, prisons, graves, birthing rooms, haunted areas, or busy thoroughfares, as these attract malignant influences that disrupt the process. Before installing the furnace, observe purification rituals for three to seven days in a consecrated space, first making offerings to local deities and enshrining an image of Lord Lao (the deified Laozi). Even spirits will then offer protection, though daily scripture recitation and mantra chanting must continue with uninterrupted incense — these are fundamental requirements for "nourishing the medicine" (cultivating elixirs) that practitioners must understand.

For external alchemy (Waidan), prioritize natural gold-bearing cinnabar (huangzhe), as it retains the primordial Qi (vital energy) of heaven and earth and can transform through cultivation. Refined gold carries turbid Qi and cannot produce the supreme elixir (dayao). Gold-sulfur mixtures are uniquely used as sealed containers (kui) because they possess the spiritual property of mutual generation like mother and child.

All tools for melting gold and constructing vessels must be brand new, cleansed with purified "milk-incense water," and placed before sacred images in purified spaces. Guard particularly against exposure to chickens, dogs, or women during ingredient preparation, and absolutely prevent outsiders from learning the process. Measurements must be exact — the slightest deviation causes the medicine to scatter and lose potency.

Gold-sulfur mixtures require grinding to flour-like fineness; coarse particles won't permeate properly even after two days. Sealing the kui follows strict protocols: first air-drying, then sun-drying. Discard any container with cracks or defects, and only begin furnace work on auspicious days. The principle "three liang of fire nourishes for three days" means applying three liang (about 150g) of fuel per two-hour fu period — other cases follow proportionally. Before placing the kui in the ash bed each time, thoroughly mix wood and paper ashes, compacting them firmly around the vessel with an ash paddle.

This scripture describes the first refinement method of the "Ninefold Sublimation to Transcend Dust Elixir" in ancient Daoist alchemy (Neidan). The entire process requires meticulous operation and strict environmental control:

First, use fire tongs to adjust the width of the crucible (the alchemical vessel), ensuring the ashes remain completely loose. Then evenly cover the crucible with well-prepared fire, followed by a layer of ash—it must neither allow drafts nor lack heat. The fire intensity should be moderate; excessive tightness will hinder the flame, though the outer ash layer must be firmly packed. If mishandled or if the fire control fails, the elixir will lose efficacy.

Should sulfur dissipate during the process, replenish it according to the amount lost and continue refining for the prescribed number of days. Upon completion, open the furnace and weigh the contents. If the weight remains undiminished, add more sulfur incrementally until the standard is met.

Before refining cinnabar, measure the required amount in a purified chamber. Add water, then small quantities of earth-horsehair moss, borax, and sal ammoniac. Simmer with moderate fire (a balanced blend of civil and martial flames) for one full day and night. After extraction, process it further using the prescribed method for "entering the chamber" (a sealing technique in alchemy). This sublimation method, though swift, is difficult to sustain long-term.

For each refinement of four taels of mercury, avoid exposing the freshly extracted substance to strong winds. First, combine equal parts of smoked plum, gold-wrapping clay, and saxifrage with the elixir, then boil in a stone vessel for one day and night. Finally, calcine it three times in a cauldron before use.

The text concludes by noting its authorship by Qingxuzi of the Golden Flower Cavern in the third year of the Yuanhe era (808 CE), emphasizing that these oral instructions must be treasured and not lightly disclosed.

The formula verse for the first refinement mentions: Combine the Three Yellows (rhubarb, skullcap, and yellow yam), the Two Seeds (cassia seeds and Chinese honeylocust pods), along with atractylodes and fringed pink flowers—seven medicinal ingredients in total—ground into powder. Mix with cinnabar and compact it in a Jianzhan (a specialized vessel), securing it with iron wire for sealing. Calcinate with two catties of fire, then cool and extract; the cinnabar will turn black. Repeat this four times, totaling twenty taels, before proceeding to the next stage. For every two taels of lead, add one tael of arsenic for subsequent refinement.

This passage describes specific operational procedures in ancient alchemical practices, focusing on the refinement of elixirs using materials like lead and arsenic. Here's a detailed explanation:

First, melt lead in a crucible (a ceramic vessel used in alchemy) until it becomes liquid, then add chunks of arsenic into the molten lead. When the fire burns until no more smoke emerges, remove the crucible to cool. Upon breaking it open, you'll find the arsenic and lead separated into two layers—arsenic on top and lead at the bottom. Only the amber-colored arsenic from the upper layer is retained, while the lead is discarded.

Next, grind twenty taels of calcined arsenic with twenty taels of cinnabar (mercury sulfide) until uniform. Place the mixture into the crucible, cover the mouth with a tile, and heat it in the furnace until it glows red. After removal, let it cool in warm ashes. When broken open, the result resembles raw silver nuggets. If the arsenic lacks color, it's unusable—this refined product is called "qingjintou" (green-gold head).

For the next step, arrange hard stones and high-quality charcoal in the furnace to create an intense flame. Place the crucible inside, cover it with the original tile, and apply additional fire over it. When a sound is heard, the cinnabar transforms into a precious substance and can be retrieved.

The second refinement process involves boiling away the lead's odor. Flatten the qingjintou into thin sheets, place them in a raw silk pouch, and boil with ten medicinal herbs including monkshood, Sichuan pepper, and alum in rice vinegar for three days and nights. After an additional day of boiling, wash it three times to remove all traces of lead, then dry it to serve as a "medicine vessel" (container for elixirs).

The third refinement entails placing the refined cinnabar treasure into the qingjintou vessel. Grind the boiled qingjin sand into powder to form the vessel, then nurture it with controlled fire for five days until all lead qi is eliminated, rendering the elixir spiritually potent.

The final section explains the method of using borax as a "mother sand" for coating. First, fumigate the crucible with white peony root and anemarrhena rhizome until it blackens. Heat it red-hot, then add an equal amount of borax to melt into a jade-colored liquid. Moisten the cinnabar with rice vinegar, coat each piece with the mother sand, roll them in ground Sichuan pepper, and place them into the precious vessel. Nurture it with the same fire intensity for seven days to obtain an iron-colored elixir. This substance can accumulate up to one jin (approx. 500g) in weight for crafting longevity elixirs or yang-vessel cultivation of spiritual cinnabar. If not used as a medicine vessel, it may also be employed directly.

This passage explains the seven-stage refinement method in ancient alchemical practice, where each stage involves specific procedures and mnemonic formulas.

The fourth stage describes refining spiritual cinnabar using the "Danyang Chamber" (a specialized alchemical vessel). When cinnabar is placed in the furnace for seven days, it transforms into an immortal substance, crystallizing like snowflakes upon contact with molten lead. The exact method involves combining three jin of Danyang cinnabar with four liang of spiritual cinnabar, moistening the mixture with vinegar, coating it with silver powder, and sealing it in the chamber. It is then refined for seven days using the "Zi-Wu-Mao-You" fire technique (a method of controlling heat during specific time periods). Finally, it is calcined under one jin of fire intensity. Upon cooling and opening the chamber, the precious substance is obtained.

The fifth stage advances the refinement of "mother cinnabar." Borax is processed according to the third-stage method, and the nascent "yellow sprout" (an alchemical term for the preliminary refined substance) from the Danyang Chamber is combined with silver in a 3:7 ratio to form mother cinnabar. Portions of five qian are shaped into pellets, hardened by boiling in alum brine, moistened with honey, and placed back into the Danyang Chamber. They are refined under four liang of fire for five days, followed by calcination under two jin of fire. This chamber must undergo five cycles of mother cinnabar refinement before progressing to the sixth stage.

The sixth stage involves refining the "great medicine chamber." Two liang of accumulated Danyang Chamber residue from the previous five refinements are mixed with one liang each of raw cinnabar, the "three sulfurs" (realgar, orpiment, and arsenic sulfide), and one liang of mercury. The mixture is ground, blended with rue herb juice, and stir-fried into a paste, then shaped into pellet-sized forms. These are coated with refined "sacred silver" and 3:7 mother cinnabar, sealed in the accumulated great chamber, and refined under the same fire technique for seven days. The result is a golden pellet-like "great medicine," with thirty liang accumulated to serve as the chamber for subsequent refinements.

The seventh stage employs cinnabar coating. Thirty liang of the "seven-treasure medicine" forms the chamber, combined with three liang of raw sulfur and seven liang of raw cinnabar. The mixture is shaped into pellets using paper mulberry juice and refined in the treasure chamber using the previous method. The mnemonic states that this process allows cinnabar to absorb Qi and transform into the elixir, achieving the legendary effect of "turning mercury into gold."

This passage describes the refining methods of "Purple Mist Great Elixir" in ancient alchemical practices, representing an advanced stage of Daoist Waidan (external alchemy) - the art of pursuing immortality through elixir preparation.

During the seventh refinement cycle, cinnabar (mercury sulfide) and sulfur are mixed, sealed, and calcined for seven days. After cooling, a violet-gold elixir is obtained, characterized by its heavy texture and lustrous appearance. For application, three qian of this powdered substance is mixed with one liang of mercury to create a treasured substance.

The eighth refinement cycle follows an oral formula stating: This celestial medicine transcends life and death, capable of transforming mortal bodies. Not only can mercury (a common alchemical material) become lethal, but even human bones may ascend to immortality through its use. The specific method involves: Using a new iron pot coated with honey, place ten liang of mercury and one liang of artificially synthesized cinnabar powder inside, then seal the lid with red halloysite (a mineral substance) to close all gaps. Apply gentle heat of four liang intensity until cartwheel-like sounds emerge from the pot, indicating successful refinement. At this stage, the cinnabar and sulfur remain unchanged. The mixture is then swept into a container for further cultivation, with measured doses of medicinal substances added daily. After one year, the "Transcendental Powder" elixir is obtained.

The ninth cycle produces the "Purple Mist Great Elixir". Its formula states: Believe that every human body contains grotto-heavens (referring to key cultivation points within the body) - sincere practice will naturally reveal them. Completion of the Purple Mist Elixir brings one closer to the immortal realm, prepared only for destined individuals. The specific method: Using thirty liang of elixir refined from the previous seven cycles as base material, add seven liang of natural cinnabar (chensha), mix with paper mulberry juice, then seal completely. Cultivate with four liang of controlled fire during specific celestial hours (midnight, noon, sunrise, and sunset) for forty-nine days. When opening the furnace, burn incense and pay respects to the Three Pure Ones (highest Daoist deities) - radiant light will emerge upon opening. Combine the powder with jujube flesh to form pills the size of phoenix tree seeds. Suspend these in a red silk bag within well water for seven days to remove fiery toxicity, yielding the "Purple Mist Great Elixir". A single pill can transform one liang of mercury into pure gold; when ingested, it enables cicada-like metamorphosis, allowing transcendence from mortal form to sagehood.

This passage meticulously documents the ancient Daoist alchemical process known as the "Zi-Wu Ling Sha Method" (Spiritual Cinnabar Technique of Midnight and Noon), which involves three primary refining stages. Ling Sha (an essential alchemical ingredient, typically referring to mercuric sulfide) must first be repeatedly boiled in mulberry ash solution. During boiling, the Ling Sha should not be ground too finely—small chunks must be preserved.

For the first refinement, the Ling Sha chunks are boiled in mulberry ash solution for two shichen (approximately four hours). After extraction, each liang (about 37 grams) of Ling Sha requires the addition of six qian (about 22 grams) of silver powder and one liang two qian (about 55 grams) of mercury. These are then placed together in an iron cauldron for smelting, ultimately yielding one and a half liang (about 56 grams) of "Mother Sha" (the foundational alchemical material). Next, mix one jin (about 600 grams) of salt with four liang (about 150 grams) of anemarrhena rhizome powder and stir-fry until the anemarrhena completely volatilizes. Arrange the salt and the wrapped Ling Sha like planted lotus seeds in a container, sealing the surface with a layer of sand and salt. Seal the opening with half a cun (about 1.5 cm) of red halloysite (a red mineral), then dry and bury it in an ash-filled jar. Gradually increase the fire intensity over the first seven days, then allow it to cool on the eighth day before extracting the Ling Sha—though the encasing Mother Sha must not be removed.

Next, grind five medicinal herbs—spinach seeds, endive seeds, water lily flowers, Marsilea quadrifolia, and Lycoris radiata roots—into powder and blend them with kudzu vine juice to form pills. Place the Ling Sha in a crucible and smelt it with seven to eight jin (about 4.2–4.8 kg) of fire until it liquefies. After extraction, remove the Mother Sha and refine it further in a lead bath, maintaining a one-to-one ratio of Ling Sha to lead.

The second refinement involves grinding the previously refined silver flakes into powder and smelting them together with the Mother Sha. For the third refinement, mix eight liang (about 300 grams) of mercury, two liang (about 75 grams) of realgar (a mineral), and one liang (about 37 grams) of orpiment powder, then stir-fry in a cauldron until a bluish-gold hue appears. If the results are unsatisfactory, repeat the process following the third refinement method. The final Ling Sha powder should be blended with mercury at a ratio of four liang (about 150 grams) of powder to one liang (about 37 grams) of mercury, ground until no granules remain. Typically processed in batches of twenty liang (about 750 grams), each round involves adding five liang (about 185 grams) of mercury—meaning ten liang (about 370 grams) of Ling Sha powder mixed with five liang (about 185 grams) of mercury—until fully integrated.

This scripture describes the specific operational steps of the "Feeding and Matching Method" (餵餤登對法) in ancient Daoist alchemy (Waidan), focusing on the progressive refinement process for cultivating cinnabar—a crucial material in alchemical practice. The entire procedure consists of six stages, with particular emphasis on the first three phases:

First, prepare the materials: Spread five taels of mercury-free powder at the bottom of a porcelain vessel, place fifteen taels of mercury-bearing material in the middle, then cover it with another five taels of mercury-free powder. Seal the container's seams with red halloysite (a type of red clay) and paper-fiber mud, then place it in an ash pit for seven days of firing. After completion, separate the upper five taels of mercury-free powder, the middle fifteen taels of mercury-bearing material, and the bottom five taels of mercury-free powder for individual processing.

Next, mix the combined ten taels of mercury-free powder (from both layers) with seven taels of mercury, grinding until no powder particles remain visible. Divide this mixture into two portions: one portion is spread at the container's base, the pre-processed mercury-bearing material is placed in the middle, and the other portion covers the top. After resealing, fire for another seven days. Upon extraction, blend the product with eight taels of mercury and grind again. Through this method, twenty taels of cinnabar can be cultivated into forty taels—demonstrating the fundamental principle of the "Feeding and Matching Method."

Later stages mention that when the material shows signs of desiccation, mercury can be replenished proportionally to maintain its vitality. The fourth stage introduces reactions with sulfur and mercury, the fifth incorporates the "Three Yellows" (realgar, orpiment, and sulfur), while the sixth stage employs salt chambers to refine golden sand. Each seven-day phase involves continuous "nourishment" of the material to enhance its potency.

In refining cinnabar sand (a type of elixir in Daoist alchemy), boiling is unnecessary—the process is conducted solely within the vessel used for the fifth calcination. After seven days of firing, the material is removed, with the quantity taken determined by practical needs. This sixth-stage calcined cinnabar sand requires only seven qian (a traditional weight unit) to transform one liang of "red flesh" (an alchemical term for unrefined material) into genuine "Danyang" (a high-grade elixir), capable of facilitating profound bodily transformation. The mentioned "upright-foot black drum" refers to two distinct refining methods. Only after this calcination can the elixir advance to the "dead dragon coiling" stage (an advanced refining phase), also known as "white snow" or "bright window dust."

The method for the seventh calcination of "dead dragon coiling" is as follows: Take one liang of sixth-stage refined cinnabar sand and combine it with one liang of mercury, grinding them until no granules remain. Specifically, for every thirty-three portions of material, thirty liang of cinnabar sand and thirty liang of mercury are blended and ground into sixty liang, then placed in the elixir cauldron. The material ascends by day and descends by night, ultimately refining into the "white snow" form.

Regarding the specifications of the elixir cauldron: The circumference of the upper and lower sections measures twelve cun (inches), symbolizing the twelve months, while the height of eight cun corresponds to the eight solar terms (major divisions of the twenty-four solar terms). The diameter of the upper cauldron is twice that of the lower, representing the twenty-four solar terms. The upper cauldron symbolizes heaven, the lower cauldron earth—ascending as Yang and descending as Yin, with the two Qi (energies) mutually transforming. This aligns perfectly with the alchemical principle of Yin-Yang harmony. The cauldron’s dimensions must neither be too large nor too small: excessive size disperses the medicinal Qi, preventing condensation, while insufficient size risks overflow, both disrupting the balance of ascent and descent. The key to the cauldron’s design lies in its internal regulation of ascent and descent, externally harmonizing with Yin-Yang, thus embodying the profound mystery of cosmic creation.

Structural details: The upper cauldron has a circumference of twenty-four cun, divided into three tiers; the lower cauldron is eight cun high with a twelve-cun circumference, also tiered in three levels. The three-tiered structures of both sections must align precisely. This cauldron requires no additional legs—instead, a thick iron ring serves as the base, with three iron nails (each as thick as a thumb and two and a half cun tall) forming the tripod.

Two types of furnaces, Yin and Yang, must also be prepared: The Yin furnace involves burying a large jar in an earthen pit, its mouth level with the cauldron’s base, with the surrounding soil firmly packed. The Yang furnace is constructed directly on the ground. After placing sixty liang of the medicinal compound into the cauldron, seal the three-tiered joints of the upper and lower sections with a thin paste made of red halloysite, securing them with iron wires threaded through the cauldron’s lugs—identical to the method used for refining cinnabar sand. The entire process must align with the seasonal rhythms of the four periods.

This passage describes the specific operational steps of the "lead-mercury method" in ancient alchemical practice, a crucial technique in Waidan (external alchemy) refinement. The entire process must strictly follow the cyclical patterns of heaven and earth, with precise fire regulation to produce the elixir.

The refinement should commence on an auspicious Zi day (the first day of the earthly branches) during the Zi hour (11 PM to 1 AM). First, place the alchemical cauldron (a Daoist vessel for elixir-making) on a tripod stand within a Yang furnace (symbolizing Yang Qi). Elevate the cauldron base to one-third of its height, then apply gentle heat (slow fire) to allow the medicinal substances inside to gradually intermingle. After one and a half hours, switch to moderate fire by raising the charcoal to half the cauldron's height, maintaining this for another ninety minutes.

Next, apply intense fire, with charcoal reaching three-fifths of the cauldron's height, again for ninety minutes. Then gradually reduce the heat, transitioning to a subtle flame to stabilize the internal temperature. At the Wu hour (11 AM to 1 PM), transfer the cauldron to a Yin furnace (symbolizing Yin Qi), positioning its belly over a small jar opening and burying three-fifths of the vessel in ash. After absorbing moisture from the upper section with cloth, place one jin of spring-appropriate charcoal (spring fire should be warm) in the cauldron tray, allowing the mercury inside to slowly precipitate.

This cycle is repeated, completing the "ascent-descent" refining process through seven days and nights of regulated firing. Upon opening the cauldron, a small amount of "white snow" (the refined white elixir) is extracted and melted in a Qi furnace. If unsuccessful, the seven-day cycle must be repeated.

Finally, grind the refined "white-snow mercury" into powder and pack it into an iron container. Line the box's base with medicinal materials, leaving a central channel to pour mercury in a lotus-like arrangement. Seal the lid tightly and place the box in an ash pit. Begin with four liang of fire atop the ash, gradually increasing to ten liang over seven days and nights to complete the process. The entire procedure strictly follows the principles of Yin-Yang ascension-descension and the harmonization of water and fire (水火既济).

This passage details specific operational procedures and formulas from ancient alchemical practices, primarily concerning the refinement of "yellow sprouts" (a Daoist alchemical term referring to lead oxide) and mercury.

Regarding fire modulation techniques: After the furnace cools, open the vessel to extract white crystalline substances ("white jade strands"). Each qian (approximately 3 grams) of this substance can transform one liang of "red flesh" (likely referring to a metallic ore). Achieving transformation of one liang using two to three qian yields superior results, though producing silver alone is also acceptable. This process repeats seven times. On the eighth cycle, adjust the extraction interval to every six days, then progressively shorten to five, four, three, and two days, ultimately reaching the state of "morning planting, evening harvest" (where materials yield results within a single day). The resulting "white snow" (alchemical product) - one qian of which can process three portions of mercury and four of sulfur - represents the pinnacle achievement.

The Ri Hua Zi's口诀 (oral formulas) document several alchemical methods:

The first method involves pulverizing yellow sprouts, washing them with water. The buoyant portion becomes "great medicine" (high-grade elixir) when cultivated in the cauldron, while the sediment yields only common materials after smelting.

The second technique combines five liang of yellow sprouts with five-and-a-half liang of mercury in a "flower pool" (reaction vessel). After heating into sandy form, seal and cultivate with alternating strong and gentle fire (文武火) for one day and night. Subsequent addition of five liang mercury and repeated refinement produces treasures.

The third formula blends half-jin portions of yellow sprouts, mercury, and silver powder into paste. After fifty cycles of quenching in the flower pool followed by sealed cultivation, final smelting yields precious substances. Qing Xia Zi supplements that one liang yellow sprouts can transform one liang "red rods" (possibly a mineral), or using five jin yellow sprouts as base material with five liang mercury added every five days creates a self-renewing alchemical source.

The fourth method spreads two liang of "window-dust" (purple powdered elixir) in a vessel, layered with one liang premium cinnabar and one liang mercury. After forty-nine days of sealed cultivation, it transforms into purple-gold powder that smelts into superior true gold. Unspoiled window-dust can be ingested directly - when ground and mixed with jujube paste to form mung bean-sized pills, taken fasting with well water, it stabilizes the Shen (spirit) and anchors the po (corporeal soul).

This passage describes specific operational methods of several Daoist alchemical techniques, focusing primarily on the refinement processes and miraculous effects of two key alchemical materials: "Bright Window Dust" (mingchuangchen) and "Purple River Cart" (ziheche).

Regarding the refinement of "Bright Window Dust": Take two liang of the material and place it in a cauldron, adding one liang of raw sulfur and one liang of mercury. After grinding and mixing, seal and heat for five days until it transforms into a purple-gold substance. Then add five qian of raw sulfur, grind again, and blend with mulberry bark juice to form pills the size of mung beans. Legend claims this elixir can revive the dead—merely half a qian dose administered with cold water into the deceased's mouth suffices.

The method for refining "Purple River Cart": Mix five liang of powdered Purple River Cart with vinegar to form a paste, shape it into a box-like container, and dry it. Place mercury inside, seal, and heat for seven days to transform it into cinnabar. An alternative formula combines one liang of Purple River Cart with one liang of cinnabar, ground together and sealed for forty-nine days of heating, resulting in sesame-sized pills. Taken with ash-free wine, these are said to resurrect the dead.

Another technique involves refining "Yellow Chariot" (huangyu): Combine one liang each of Yellow Chariot, cinnabar, and mercury with five qian of realgar. After grinding and mixing, seal and heat for seven days to produce mung bean-sized pills. Consumed daily on an empty stomach with well water, these treat symptoms of yang energy depletion and mental confusion.

These alchemical methods emphasize strict material ratios, precise control of sealing duration and heating temperature, and specific administration protocols. The text mentions the "Three Corpses" (sanshi)—three parasitic entities believed to inhabit the human body in Daoist thought—which are said to automatically depart after ingesting these elixirs.

This scripture records several specific methods of ancient alchemical practice, primarily concerning the transformation of substances like mercury and realgar into "supreme treasures" (precious elixirs).

The text first describes a rejuvenation elixir method: place one jin (Chinese pound) of mercury in a cauldron, mix it with two pellets of prepared elixir, and refine it into a treasure. Next is the method of "transmutation using realgar": place the previously refined yellow earth (huangyu) pellets into the alchemical furnace (divine chamber), cover them with one liang (Chinese ounce) of yellow earth powder, seal it, and refine it under specific firing conditions for one hundred days. The resulting elixir can transmute one jin of iron into genuine gold—a truly miraculous effect.

The text then introduces the refinement of the Purple River Chariot (a type of elixir): mix yellow earth with sprout-like substances, add four liang of cinnabar, seal it in the alchemical furnace, and refine it for thirty-five days. After extraction, combine it with powdered cinnabar and mulberry tree sap to form pellets the size of mung beans. Each pellet can transmute ten liang of mercury into treasure.

The scripture also details the making of the Purple Gold Elixir: refine one liang of Purple River Chariot powder in a sealed alchemical furnace for one year, forming pellets the size of mung beans, which can transmute various metals into treasures. A more advanced method, the Divine Transformation of Purple Gold, requires refining Purple River Chariot powder for another year, forming sesame-sized pellets. After soaking them for forty-nine days, they are to be taken on an empty stomach with ash-free wine, said to possess extraordinary spiritual efficacy.

Finally, the text mentions the refinement of the "Dragon-Tiger Great Return Elixir": one must observe fasting, purification, and make offerings to heaven and earth before opening the furnace to retrieve the elixir. If a true crimson substance is seen condensed on the cauldron, it is the legendary elixir of immortality. Consuming it for a hundred days is said to enable ascension to immortality. All these methods emphasize strict timing, sealing conditions, and precise control of firing techniques.

This scripture primarily elucidates the preparation methods and efficacies of several elixirs.

Regarding elixirs such as the "Divine Talisman White Snow Elixir" (Shenfu Baixue Dan): When the surface of an elixir displays golden patterns resembling fish scales, it is called the "Divine Talisman White Snow Elixir"; if tinged with red around the edges, it is termed the "Purple Ultimate Elixir" (Ziji Dan); if it retains a deep purple hue, it is named the "Purple Gold Elixir" (Zijin Dan); and if golden patterns shimmer along the cauldron's rim, it is known as the "Golden Liquid Minor Return Elixir" (Jinye Xiaohuan Dan). These elixirs should be kneaded with mulberry bark juice into sesame-sized pellets, dried, wrapped in cloth, and soaked in flowing river water for one hundred days. For consumption, take one pellet with well water—four liang (approx. 150g) constitutes one dose. Prolonged ingestion of this elixir will, after a thousand days, turn one's bones and organs golden, ward off all malevolent influences, and elevate the practitioner to the status of an Earth Immortal (a long-lived being who has yet to ascend).

The text then details the preparation methods for three specific elixirs:

1. "Yellow Sprout Reveals Treasure" (Huangya Jianbao): Crush yellow sprouts (a refining ingredient) and wash them with water. The floating portion is used for medicine, while the sediment at the bottom can be refined into white gold.

2. "Yellow Sprout Extraction and Addition to Produce Medicine" (Huangya Choutian Chanyao): Take five liang of the sediment, combine it with mercury in the "Flower Pool" (a refining vessel) to solidify, seal it in an iron box, and nurture it with one liang of fire for three days. Alternatively, increase the quantity to one jin (approx. 600g) and refine it nine times in the "Divine Chamber" (a specialized refining space). This can transmute the Five Metals (various metals) and, when ingested, grants immortality. It is called the "Red Stone Elixir" (Chishi Dan).

3. "Red Stone Elixir Seeds the Jade Field" (Chishi Dan Zhong Yutian): Take one liang of red stone cinnabar, mix it with ten liang of mercury, vinegar powder, and another ten liang of mercury to form a paste. Quench it ten times in the Flower Pool. Then add another ten liang of mercury into an iron box, cover it with sand and stones to seal, and nurture it with five liang of fire in an ash pool for seven days. Afterward, add three liang of mercury and nurture for another seven days, producing white crystals. Refining three liang of these crystals repeatedly yields an inexhaustible treasure.

Finally, the scripture mentions the preparation of the "Four Divine Elixir" (Sishen Dan): Take one liang of the Four Divine Elixir, half a liang of imported sulfur, and three liang of mercury, grind them into powder, place them in a bottle from Hunan, and nurture them in an ash pool for twenty-one days. Starting with half a liang, the quantity can be increased to ten liang. After a full year of nurturing, grind the mixture two thousand times.

The "Compendium of Lead-Mercury Alchemical Treasures" primarily documents several operational methods of alchemical practice. Here is a detailed explanation:

Regarding the refinement process of "Bright Window Dust" (a key alchemical ingredient): When cultivated to the fifth stage, it becomes as light as dust, impervious to damage by water or fire. If cast into the air at high noon, it transforms into white clouds that gradually ascend beyond measurable heights.

The specific preparation method for Bright Window Dust: Take five taels of the substance and mix it with rice vinegar to form a paste. After drying, seal it within a mercury crucible (alchemical vessel) and calcine for one day and night using alternating civil and martial fires (civil fire refers to gentle heat, martial fire to intense heat). The refined product can be fashioned into vessels capable of detecting various toxins.

Method for processing cinnabar with Bright Window Dust: Layer the dust above and below the cinnabar, then calcine with alternating civil and martial fires for one day and night. Pills the size of jujube flesh made from this preparation can stabilize the ethereal and corporeal souls. For cases of sudden death within seven days, administering half a qian of this subdued cinnabar with cold water can revive the deceased. However, while its efficacy approaches that of the Great Elixir (high-grade alchemical product), it cannot induce ascension like its superior counterpart.

The transmutation method using Bright Window Dust to convert copper to silver: Grind arsenic into powder and layer it alternately with Bright Window Dust, then calcine for one day and night. Each tael of this preparation can transmute one jin of copper staff into treasure.

Regarding the refinement of "Yellow Chariot" (also called Purple River Cart): Take ten taels or one jin of Yellow Chariot and refine according to the Great Medicine method for ten months until it becomes purple-gold powder. The mercury reaction method with Purple River Cart: Combine one tael of Purple River Cart with one jin of mercury in a Hua Pool (alchemical vessel) and quench three times, whereupon the mercury transforms into white frost. After seven days of sealed calcination, it becomes gold. This process can be repeated with additional mercury—this constitutes the artificial gold shell technique.

The combined use of Purple River Cart and realgar: Layer powdered Purple River Cart with any quantity of realgar in a sealed container, then calcine in an ash pool for seven days to produce subdued realgar. For every two taels of this powder, add one qian of raw borneol and form into mung bean-sized pills using paper mulberry juice. Take three pills on an empty stomach with ash-free wine.

Method for processing mercury with subdued realgar: Combine ten taels of mercury with half a tael of subdued realgar powder in a dipper, cover with damp paper and a teacup, then calcine with alternating civil and martial fires for one day and night until the dipper glows red, thereby producing the treasure.

The method for refining Purple Elixir from Purple River Cart: Combine four taels of Purple River Cart, eight taels of mercury, and four taels of realgar in an iron container for refinement.

This scripture records several methods of ancient alchemical practices, primarily detailing the preparation of "Purple-Gold Return Elixir" (Zijin Huandan) and its miraculous effects.

Regarding the method for refining the Purple-Gold Return Elixir: First, lead and mercury must be sealed in an ash pit and calcined over gentle heat for forty-nine days (equivalent to a year's worth of firing) until a purple-gold elixir is produced. This elixir possesses the power to transmute other metals—a single pellet can transform one pound of mercury into gold. It can also melt one pound of crude iron into molten metal before converting it into high-quality gold. Similarly, one pound of copper can be transformed into gold using the same method.

Concerning the effects of ingesting the Purple-Gold Return Elixir: Take three pellets daily on an empty stomach with clear wine. After consuming a thousand pellets, one becomes impervious to harm from venomous snakes, wild beasts, demons, and malevolent spirits. This elixir far surpasses medicines refined from ordinary metals, stones, or herbs. After a thousand days of ingestion, the five viscera and bone marrow will turn golden, ultimately leading to immortality and ascension to the celestial realm.

Finally, the scripture records the method for refining the "Great Subtlety Emperor’s Longevity and Life-Preserving Elixir" (Taiwei Dijun Changsheng Baoming Dan). This requires melting mountain-marsh silver in a crucible until it forms millet-sized beads, which are then combined with cinnabar and other medicinal ingredients. The process involves complex stages of boiling, "bathing" (herbal processing), drying, and roasting. During refinement, the vessel must be coated with specific herbs, and the materials must be wrapped in layers while carefully controlling the heat—gradually increasing from three to four taels of fire over several days until the materials fully melt. If incomplete melting occurs, the process must be repeated until successful.

This passage describes the seven refinement stages of cinnabar in Daoist alchemy, forming part of the "Ninefold Reverted Elixir" (Jiuzhuan Huandan) practice. Each refinement is called a "revolution" (zhuan), with detailed methods provided for the third to seventh revolutions.

Third Revolution Method:

Grind the previously obtained five taels of cinnabar into fine powder to serve as the container (kui). Add three taels of fresh cinnabar and follow the previous procedure. Maintain the same fire control (huohou) as the second revolution. The refined cinnabar will appear white. This yields eight taels total, which continues as the container material - the third step in ninefold elixir refinement.

Fourth Revolution Purification:

Grind the eight taels from the previous stage and place in the container. Cover with mica slices, then seal tightly with talcum powder. Nurture in an ash pot with three-tael fire intensity for three days. Remove the talcum powder upon completion.

Fifth Revolution Earth Transformation:

Return the fourth-revolution cinnabar to the container, again covering with mica. Take two taels of high-quality realgar (xionghuang), grind it into powder, and layer it atop. Nurture with three-tael fire for three days until the cinnabar turns earthen yellow. The processed realgar can be collected for other uses.

Sixth Revolution Lidless Method:

Now exhibiting earth properties, the cinnabar only requires herbal stabilization. Place the previous batch in the container without mica covering. Instead, mix with buckwheat stalk ash before covering. Nurture with three-tael fire for three days.

Seventh Revolution Reversion:

By the seventh revolution, the cinnabar reverts to red, regaining its original properties - hence called "Reverted Elixir" (huandan). The elixir now begins showing spiritual transformations. Initially appearing bluish-green (like maternal essence), if not combined with lead, it manifests five yellow and three white transitional phases. One must wait until the medicinal properties fully integrate before proceeding to subsequent seven-return nine-revolution stages.

(Note: "Kui" refers to the sealed alchemical vessel; "fire control" (huohou) means heat regulation; "revolution" (zhuan) indicates refinement cycles; "Reverted Elixir" (huandan) is the Daoist longevity elixir.)

This passage explains the specific operational methods of "Seven Reversions and Nine Returns" in Daoist alchemy. The concept of "returning to the origin and restoring primordial purity" refers to repeatedly refining substances until they revert to their fundamental state—the core principle of alchemical longevity practices.

The process begins with using raw lead (a technical alchemical term referring to specific minerals) as the external stabilizing agent. Cinnabar undergoes seven refinement cycles, each time being reground, placed in a vessel, covered with lead from the first refinement, and calcined for three days at a fire strength of three liang (about 150g). Through this repetition, the cinnabar transforms from red to yellowish-white.

After completing seven refinements, the eighth transformation begins. The seven-times refined cinnabar serves as the "alchemical matrix" (a container vessel), into which two liang of mother cinnabar (base material) is added, divided into four portions for sealed calcination. The process involves three days at two-liang fire strength followed by one day at four-liang strength, repeated three times. This same method is then applied through nine additional refinement cycles, each requiring fresh mother cinnabar.

Next, the seven-times refined cinnabar powder is spread as a base layer. Four half-liang portions of mercury are placed in pits dug into this powder bed, covered, and calcined for three days at two-liang strength. This mercury-pitting process repeats thirty times. A final overnight calcination at two-liang strength renders the elixir spiritually potent, qualifying it for the eighth transformation.

The eighth stage, called "Creation Beyond the Mother," involves wrapping four liang of raw cinnabar in gold foil for furnace calcination. The ninth transformation—the "Nine-Return Elixir"—requires separate vessel refinement involving sixteen distinct transformations.

This extraordinarily meticulous process, with its exacting requirements for fire regulation and material proportions at each stage, embodies Daoist alchemy's ultimate pursuit of the "return to primordial origin" principle.

The fourth volume of Compendium of Lead-Mercury Alchemical Treasures (Qian Gong Jiageng Zhibao Jicheng), in its tenth chapter, records six methods for preparing medicinal materials in the alchemical chamber, all of which were verified as practical techniques by Master Zhao Zhongming.

Method for Processing Salt: Take ten taels of salt and soak it in a large bowl of juice extracted from the leaves and roots of sheep's hoof (Rumex japonicus). Filter and decoct until dry. Then mix in two taels of powdered soapnut (Gleditsia sinensis) and place in a sand pot. Heat over strong fire until glowing red, continuing until no more smoke emerges.

Method for Processing Alum: Soak alum in ash water derived from burning wufangcao (a medicinal herb) for half a day, then dry and calcine over strong fire until glowing red. Alternatively, cocklebur (Xanthium sibiricum) juice may replace the wufangcao ash water.

Method for Processing Niter (Saltpeter): First rinse the pot repeatedly with ginger juice, then boil the niter with ginger juice for three double-hours (six hours). After the ginger juice evaporates, cover and calcine several times. Only niter processed this way can be used to make "frost powder" (refined medicinal powder). Another method involves soaking niter in water boiled with cypress branches and soapnut for half a day before calcination.

Method for Processing Sulfur: First boil sulfur for a full day in filtered ash water from burned yellow millet stalks. At dawn the next day, extract natural juice from two or three basins of spinach. Heat an iron spoon until red-hot to melt the sulfur, then pour it into cold spinach juice. Repeat this three or four times until no more smoke appears. Keep ash mud ready during the process—if sulfur begins to smoke, immediately cover it with the mud.

Method for Processing Realgar: Boil realgar powder in a sealed jar for one day with juice extracted from atractylodes (Cangzhu) and Chinese angelica (Danggui). After boiling dry, cover with the boiled herb residue and place in an open flame furnace. Heat until faintly red, then remove immediately. Upon cooling, the realgar will solidify into lumps at the jar's base.

Method for Processing Borax: Select high-quality Sichuan ox knee (Cyathula officinalis) and coarse powder of raw oyster shell (avoid fine powder). Decoct borax and oyster shell in Sichuan ox knee decoction for one day. Then place in a sand pot, cover with ox knee residue, and calcine over strong fire. After cooling, the oyster shell and borax will naturally separate.

The text concludes with a formula for sealing the alchemical vessel: A paste can be made from needle iron sand, clam powder, salt, and vinegar for application. Alternatively, use white clay (baishantu), clam powder, salt, and vinegar, or simply mix plant ash with vinegar to form a sealing paste.

This passage primarily discusses material identification and formula preparation in alchemical practices. When making the foundational alchemical material called "Six-One Mud," salt must first be calcined with fire before use.

The text meticulously lists twenty materials referred to as "gold" in alchemy, including male yellow gold, female yellow gold, and zengqing gold (among fifteen total varieties). However, it clearly states that only five of these qualify as genuine Golden Elixir (Jindan) materials: returned cinnabar gold, water-processed gold, melon-seed gold, green-bran gold, and herb-sand gold—the others being false gold.

Four significant elixir formulas are then introduced:

1. Four-Spirit Sublimation Elixir: Primarily refined from cinnabar, sulfur, realgar, orpiment, and magnetite.

2. Nourishing Rectitude Elixir: Prepared using sulfur, lead, mercury, and cinnabar.

3. Sinking Aconite Black-Tin Elixir: Composed of ten ingredients including eaglewood, black lead, and aconite.

4. Eight-Treasures Spirit-Quaking Elixir: Contains eight components such as cinnabar, hematite, and spirit-excrement.

The "Mirror Origin of the Alchemical Chamber" section records numerous material properties and interactions. For instance: mica powder can subdue mercury and cinnabar; celery flowers (resembling peonies, three feet tall) instantly stabilize orpiment against volatilization; violet-backed mallow hardens lead; stone bamboo flowers fix arsenic within the cauldron; and tiger-whisker grass boiled with sal ammoniac immediately yields gold.

Various mineral characteristics are noted: stalactites serve as cinnabar containers; purple alumite subdues mercury; talc controls orpiment and realgar; premium chalcanthite from Puzhou—egg-sized stones revealing layered patterns when broken, displaying blue-green hues. These records reflect ancient alchemists' meticulous observations of mineral properties.

The Compendium of Lead-Mercury Alchemical Treasures (Qian Gong Jia Geng Zhi Bao Ji Cheng) documents several crucial mineral processing methods in Daoist alchemy:

For producing chalcanthite (copper sulfate), one should boil water drawn from bitter springs. Prolonged boiling of chalcanthite in an iron cauldron will gradually transform the iron into copper. When using high-quality zengqing (natural copper sulfate ore) from Yuzhou (present-day Wei County, Hebei), care must be taken to remove impurities like stones and patina. The refining method specifies: for every liang (approx. 37g) of raw material, combine with equal portions of purple-backed begonia, licorice, and glossy ganoderma herbs - half dried and half fresh, each portion about one bo (500ml). These are simmered with other medicinal herbs for five days and nights under precisely controlled heat. After completion, rinse with flowing clear water and grind in a mortar. Zengqing can coagulate mercury, refine cinnabar, and is said to generate golden qi. When reduced to paste by fire, it can instantly transform mercury into silver, which then evolves into the Eight Minerals (essential alchemical substances).

The processing of kongqing (another copper-bearing mineral) follows similar procedures, with Yuzhou specimens being most prized. Realgar (arsenic sulfide) allegedly transforms into gold after a thousand years - select specimens with partridge-liver coloration. For every three liang of realgar, combine five liang each of licorice, begonia, scorpion weed, and blue-edged flowers. After chopping, place in a crucible and boil with flowing water for three fu periods (approx. 36 hours). Filter, pound into powder, then refine using the water-settling method to remove black impurities before sun-drying and regrinding. Specimens containing ironstone must be discarded.

Sulfur processing requires saltpeter to control combustion. Sulfur blackens when contacting metals but turns red with mercury. Select four liang of lustrous sulfur, mix with one bo each of dragon-tail wormwood juice, flowing water, purple-backed begonia juice, and spurge stem juice. Seal in a gan crucible (alchemical vessel) and heat while gradually adding herbal juices. The final product combines with ten liang of hundredfold powder, two jin (approx. 1.2kg) of willow-mussel powder, and two jin of clustered grass (all chopped), boiled in flowing water for two fu periods before final simmering in prepared licorice water and grinding. Leaf orpiment can transform sulfur into frost powder. For four liang of orpiment, combine five liang each of celestial jade branches, harmony-sun grass, and spurge grass, boiling in porcelain crucibles for three fu periods until the liquid turns golden. All processes must use east-flowing living water (continuously moving stream water).

This passage details specific operational methods in ancient alchemical practices, primarily concerning the processing of various minerals and medicinal substances for elixir refinement. I'll explain it section by section:

First, the treatment of orpiment (an arsenic-containing mineral): It must be washed three times repeatedly, dried after removing moisture, then pounded and sieved into fine powder. Special care must be taken to avoid contamination, as it will turn black if polluted. During refinement, the fire must be carefully controlled until the color stabilizes and the substance melts into liquid, which can then be used to transform other materials. Gypsum from Guizhou can be used to congeal mercury.

When processing certain toxic minerals, one must boil them with natural juices from mallotus and fleeceflower root for approximately two hours to neutralize toxicity. For every ten taels of mineral, sufficient herbal material should be used in the boiling process. Four taels of magnetite (natural lodestone) can assist in processing cinnabar, helping remove copper impurities. Magnetite combined with other substances can also process stubborn mercury—specifically, one jin of magnetite should be paired with one bowl of five-flower bark, one bowl of sanguisorba root, and fifteen taels of old silk floss. These ingredients should all be chopped, pounded into small pieces in a stone mortar, placed in porcelain vessels with herbs, and boiled in running water for three days and nights. After removal and drying, wrap in cloth and continue pounding into fine powder.

Subsequent sections describe various mineral processing methods: Mirabilite (possibly glauber's salt) can make waterproof clothing or be consumed; actinolite can form outer containers for alchemy; materials from specific regions like the "Fulonggan" (possibly a type of clay) from Luzhou or ten-year-old purple porcelain fragments from cauldron bottoms can process cinnabar. Lime can subdue sulfur and remove tin impurities; sal ammoniac (ammonium chloride) can process realgar; when hematite appears golden, it can transform substances.

Black lead (graphite) can transmute copper into silver when specially processed, and can also be cast into alchemical tripods for refining cinnabar and mercury. Lead acetate (possibly lead frost) also requires specific fire control during refinement.

Finally, a detailed elixir recipe is recorded: one jin of lead, two taels of sulfur, and one tael of saltpeter. First melt the lead into liquid, add vinegar drops, then when boiling add a small piece of sulfur followed by a bit of saltpeter. After boiling stops, add more vinegar and repeat the saltpeter addition until sulfur and saltpeter fully react, then stir-fry into powder to obtain minium (lead tetroxide). This minium can subdue sulfur and serve as outer containers for alchemy. The mentioned "Wuchang copper elixir" likely refers to this minium.

This passage provides a detailed account of several important formulas and refining methods from ancient Daoist alchemy (Waidan). It describes the complex processes for treating mineral materials to produce elixirs.

The first section explains methods for processing salt and mercury. Pure "Rong salt" (a type of mineral salt) is used to create red and black layers, stacked like piled eggs, to desiccate mercury and produce cinnabar (mercury sulfide). Four types of yellow substances are then made from brine salt to serve as flux, combined with snow alum to further dry the mercury.

Next comes the refining process for cinnabar and alum: The materials are placed in porcelain vessels and fired until glowing red-hot. After removing the lids with tongs, stone honeycombs are added and fired until completely consumed. The cooled material is then crushed, powdered, and buried in paper-wrapped five-to-six-inch pits overnight before final grinding. The ratio is six ounces of honeycomb per ten ounces of material.

Another method involves grinding ingredients into powder, loading them into three-liter porcelain jars sealed with "Six-One mud" (a special clay mixture), and drying near fire. Powdered alum is added along with juices from pentagonal herb and marshmallow root, with gradual alum additions while fire drives out the liquid. The jar mouth is covered with a cup and sealed with clay, then fired from mid-morning (9-11am) to early afternoon (1-3pm). After cooling, it's ground into light powder.

The text also records niter refining: Powdered niter is placed in jars and calcined with five catties of fire until red-hot. Pellets the size of small pearls are made from chicken intestine leaves and arborvitae seeds, then added to the glowing jar with four ounces of niter. The mixture is fired until the pellets fully dissipate. "Niter herb" (possibly a niter-herb compound) can stabilize substances against decomposition.

For cinnabar processing: First wash with fragrant decoction, dry, pound, and grind in white mortar for three "Fu days" (hottest summer period). Place in porcelain pot with licorice, marshmallow root, and five-direction herb, wash with east-flowing living water, sun-dry, then regrind. Store in small porcelain jars covered with half-ounce portions of glossy ganoderma and mountain beard grass. Fire with ten catties of fuel from mid-morning to midnight (11pm-1am), then cool and regrind.

Finally, mica treatment: Select one catty of mica with water-like luster, combined with one bowl each of small earthgall herb, violet-backed marshmallow, raw licorice, and rehmannia juice. Dry herbs are finely cut; fresh herbs juiced. All ingredients go into a porcelain pot with three bowls of "Heavenly Pool water," simmered seven days and nights with strictly maintained fire regulation.

This scripture primarily documents various methods used by ancient Daoist practitioners for refining elixirs and processing metals. It begins by detailing the preparation of jadeite solution (a mineral fluid): the substance must be stirred and rinsed three times with water from the Heavenly Pool to remove impurities and foam, then washed three more times with eaglewood infusion before being sun-dried for later use.

Regarding cinnabar (mercury sulfide) refinement, the text specifies using plant ash to regulate the fire until the cinnabar melts into liquid. Mercury solidifies when encountering sulfur and becomes fixed when combined with lead. Processing mercury requires boiling it for a full day with placenta (purple river cart), together with juices from violet-backed mallow and fleeceflower vine. Adding lotus nodes and asafoetida aids in treating copper vessels.

The text enumerates multiple herbs and their effects on metals: motherwort subdues sulfur, turmeric ash congeals sand particles, mulberry ash fixes mercury, gallnut assists in lead refinement, willow resin coagulates sand, and horse fat softens the five metals. Ox dung enhances medicinal potency, sheep fat softens silver and copper, while hedgehog skin oil subdues realgar.

The "Classic of the White Snow Sacred Stone" section meticulously records the method for refining the "White Snow Sacred Stone": chalkstone and white stone are boiled in water until nearly dry, when stone blossoms appear. These are scooped out with a willowwood spoon, dried, then sealed and calcined for a full day and night. The product is then mixed with white stone powder and boiled again, with honey added before surrounding the vessel with fire until the bottle glows red. After cooling, the final product is extracted. This process requires repetition, each time with varying proportions of white stone powder.

This passage documents the detailed six-stage alchemical process for refining "Rong salt" (a type of mineral salt) in ancient Chinese Waidan (external alchemy) practice. Each refinement alters its properties to produce elixirs with distinct effects.

First refinement: Mix Rong salt with talcum powder, blend with rice vinegar, and steam in a sealed vessel for three "fu periods" (approximately 36 hours) to obtain white crystals called "True Frost White Jade."

Second refinement: Combine five taels of these white crystals with half a catty of realgar using the same method to produce a red glass-like substance. Add two taels of white stone (a white mineral), continue boiling, then incorporate rice water, rice paste, vinegar, and donkey milk. Steam until the milk evaporates completely, creating "Third Transformation Glass Mercury-Absorbing Stone" capable of fixing mercury.

Third refinement: Grind this material with mercury in specific proportions and heat to create "Fire-Subdued True Treasure" that stabilizes mercury against volatilization.

Fourth refinement: Combine the third-stage product with white stone and honey to form cakes. After sealed heating, this yields "Blue Sand Stone."

Fifth refinement: Blend the Blue Sand Stone with rice vinegar and boil continuously for five days and nights to produce black "Black Divine Excrement Stone." This substance reacts with lead, mercury, and tin to create gold. The consumption method involves mixing it with mercury, wrapping the compound, and burying it in manure for three days and nights of calcination with chaff fire and horse dung. The resulting five-colored glassy elixir was believed to confer immortality.

Sixth refinement: Boil the Black Divine Stone with white stone and calcine for one day and night to obtain "Purple Robe Sand Stone," which similarly stabilizes mercury.

The entire process demonstrates the sophisticated techniques of ancient alchemy through repeated calcination and mineral combinations, pursuing material transformation and elixirs of longevity. The term "fire-subduing" (fuhuo) refers to methods for stabilizing volatile substances, while "mercury-subduing" (fugong) denotes techniques for controlling mercury's volatility.

This passage documents the specific operational methods of metallic transformation in ancient Daoist alchemy (Waidan). It primarily describes the alchemical procedures from the Seventh to Tenth Transformations, detailing how to transmute common metals into precious ones using specific minerals.

The Seventh Transformation method: Grind the mineral ore finely and mix it with white stone, then heat until flame-colored. After cooling, extract the substance, called "Dao Glass" (Daoboli). Combining one liang of this material with one jin of mercury (Hg) and smelting them yields one jin of precious purple-polished gold, far more valuable than ordinary gold.

The Eighth Transformation, called "Hidden Dragon Jasper Wave Stone" (Qianlong Bibo Shi): Boil and refine four liang of jasper wave stone with ten jin of black tin (lead) flakes, adding rice vinegar while maintaining heat for one full day and night. This transforms the lead into ten jin of reddish-yellow gold, superior in quality to regular gold.

The Ninth Transformation, called "Red Stone" (Hongshi): Decoct and refine specific ores with white stone in precise proportions, then smelt to create a substance for mercury transformation. When one jin of mercury is smelted with four dan of red stone, it transmutes into ten jin of reddish gold.

The Tenth Transformation, called "Green Emperor's Waterwheel" (Qingdi Heche) or "Yellow Stone" (Huangshi): This material can transform hard substances into jade, and also convert copper, iron, lead, tin, and mercury into reddish gold. The specific method involves mixing powdered ore with yellow stone powder and stirring. The text further mentions that ingesting this yellow stone can prolong life.

The concluding section explains artifact production: Mix the raw material powder with yellow stone, place it in a bamboo tube to boil into liquid, then pour into molds to create crystal-clear vessels with effects resembling natural quartz.

This passage describes several metal transformation techniques from ancient alchemical practices, belonging to the Waidan (external alchemy) tradition. Let me explain these operational procedures in detail:

The first method involves drying a certain mineral (called "flower"), placing it in a vessel for calcination until it turns fiery red, maintaining this state for one "fu period" (approximately two hours). It is then melted in a cauldron into metal ingots. After cooling, the vessel is broken to retrieve the product, named the "Eleventh Transformation: Treasure of Radiant Cinnabar Shining Stone." The specific procedure uses ten jin of black tin (lead-tin alloy) ground into powder, mixed with four liang of sand-ze stone (a type of mineral), boiled in rice vinegar for one fu period, then calcined with chaff fire and cattle/horse dung until fiery red. After one day and night, ten jin of purple-gold metal is produced. When ground into powder and ingested, it was believed to confer immortality.

The second method employs four liang of sand-ze stone and two liang of white stone (white mineral), processed similarly through decoction. The dried mineral is calcined in a container until fiery red for one fu period. After cooling, the vessel is broken to retrieve and melt into ingots, called the "Twelfth Transformation: Jasper-like Turquoise Luminous Stone." Specifically, ten jin of refined lead is hammered into cakes, mixed with five liang of turquoise stone and vinegar, boiled for one fu period to produce ten jin of purple-polished golden metal. When this gold is melted with ten jin of refined copper and stirred with one liang of this special gold, it yields ten jin of pure gold.

The third technique uses ten jin of refined lead hammered into thin sheets. Four liang of red stone (red mineral) is ground and mixed with rice vinegar into a paste, which is applied to the lead sheets. After drying, a half-inch layer of cattle dung is added. When completely dry, the sheets are placed in a flat-bottomed cauldron and calcined with chaff fire and horse dung for three days and nights until fiery red, yielding ten jin and one liang of refined gold—reportedly five liang more valuable than ordinary gold.

Finally, the text mentions methods for creating "Sun-Moon Radiance" or "Five-Colored Stones": Clam shells are peeled of their rough outer layer and ground into powder. For every jin of powder, one liang of five-colored stone is added. The mixture is placed in a vessel and boiled in water for half a day until forming a paste, which is then shaped into perforated beads. When hardened in lime, these become pearls. After being swallowed by geese for two days and retrieved from their droppings (then washed clean), they were said to become extraordinarily luminous.

This passage describes ancient Daoist methods for crafting "luminous pearls" and elixirs. By mixing powdered clam shells and crystal dust in specific proportions, one could create night-luminous pearls. The precise method involved taking four liang of a special stone (essence of the sun) and two liang of white stone, then refining them five times according to Zhang Xiu's secret method to achieve spiritual potency—though twenty-one refinements yielded optimal results.

The detailed process required grinding three liang of this stone with one jin of mercury (essence of the moon) for half a day, then heating it over three jin of fire until glowing red. After cooling into a golden substance, it would be filed into powder, mixed with two liang of saltpeter, and ground again. Sealed in a peeled bamboo tube and boiled in water for three days and nights, the mixture would liquefy and harden upon exposure to wind. Consuming a pea-sized portion daily on an empty stomach for three days could prolong life; a hundred days of ingestion enabled ascension to immortality, where deities would pay homage, elevating one to the rank of zhenren (the highest Daoist spiritual attainment).

The text emphasizes that stones embody solar essence while mercury contains lunar essence. Following this method could even transmute silver into gold. The stones were governed by the five flavors, mercury by metallic nature—lead being the quintessence of stone, mercury the qi of metal—requiring twenty-one refinements to attain numinous potency.

Later passages mention the "Eight Minerals" (collective term for alchemical ingredients) and their poetic names like "Purple Wandering Elixir" or "Purple River Chariot," all denoting these miraculous compounds. The Dragon-Tiger Scripture states that obtaining the Purple Wandering Elixir grants immortality, as this medicine can generate all things. Also referenced is the theory of "one substance blending three splendors," where a single material yields three refined essences.

The conclusion stresses repeated filtration and purification during refinement, citing the Cantong Qi's teaching about the profound mystery hidden within the seemingly indeterminate state during elixir preparation. "Water numerology" refers to alchemical secrets—the Dragon-Tiger Scripture notes water's capacity to nurture all beings, which encapsulates the method for crafting dragon-tiger elixirs (advanced alchemical preparations). A final admonition warns that such knowledge should only be transmitted to worthy adepts, never casually disclosed.

Master Bao (a Daoist alchemist) composed this alchemical verse: The snow-white elixir requires the union of "Chanü" (a poetic name for mercury) and "Liu Lang" (a poetic name for lead) at the auspicious hour of "two eights" (symbolizing the harmonious meeting of Yin and Yang). During refinement, repeated firing transforms the substance from Yin to Yang, ultimately achieving a frost-like purity.

The method involves boiling cinnabar (mother sand) with other medicinal ingredients, then refining the extracted essence in a crucible. When the flame manifests a specific hue, continue the process for one full day-night cycle (called "one fu period") until the molten substance forms ingots in the cauldron. This product is called the "Fifteenth Transformation Life-Preserving Elixir," also known as "vitreous stone."

Seven mineral substances are required: male/female azurite, malachite, mercury, cinnabar, sulfur ore, etc. Grind one jin of each mineral separately into powder, then mix with one liang of vitreous stone powder. This compound hardens upon wind exposure, becoming translucent inside and out, remaining cool to fire—the hallmark of superior jade. Ingesting it prolongs life. When combining one jin of mercury with this mineral powder, half a day's firing yields one jin of red gold.

An alternate method: Take one jin each of various mineral powders mixed with one liang of vitreous stone powder, blend with one sheng of rice vinegar, and steam in a peeled bamboo tube over water for one day-night cycle. The resulting jade remains dough-soft for shaping. After polishing with clam shells and placing in lime, it soon hardens into crystalline jade. The same process creates the Seven Treasures including conch and agate.

Commoners assume these transformations require secret formulas, yet the principle remains constant. After five transformations it becomes "White Tiger Elixir"; ten transformations yield "Green Emperor's River Chariot Elixir"; twenty-one transformations produce "Mysterious Heaven Purple River Chariot Elixir" (equivalent to the Great Return Elixir); forty-nine transformations can transmute mercury into gold. In truth, this mineral withstands two to three hundred transformations—let alone twenty-one. All elixir transformations follow this fundamental law.

Regarding lead refinement: Process the aforementioned two minerals separately through ten cycles each in lime, ox dung, wood ash, cold water, lard, and vinegar lees, then hammer into thin sheets to produce gold. This method follows the principles of the Upper Realm (Daoist higher cultivation states)—twenty-one transformations generate miraculous effects. When lead becomes soft like "rong salt" (a specific refined state), it's ready for mercury-lead refinement. Three days and nights of firing complete the gold. For urgent needs: mix five liang of refined mineral powder, one liang of raw mercury, and two liang of black lead; wrap in this powder, seal with clay, and fire for three days and nights to completion.

This passage describes ancient alchemical techniques for transforming lead and mercury into gold. The process begins by smelting raw materials to remove impurities, obtaining one tael of purified molten liquid. This is then treated three times with fresh cow dung juice to produce "Geng" (an alchemical term referring to an intermediate product).

If a grain-sized portion of "Shidou" (an alchemical material refined five times) is held in the mouth along with one tael of mercury for a specific duration and then spat into a fire for smelting, the mercury will not evaporate and will ultimately transform into gold.

Another method is detailed: Take half a catty of "Jingong" (an alchemical term, likely referring to lead or a metallic compound), place it on a new tile to remove dust, then melt it into liquid in a "Five Stars Cauldron" (an alchemical vessel). Add two qian of mercury and "Nao" (sal ammoniac, ammonium chloride), which is said to produce miraculous effects.

The text further elaborates on precise alchemical ratios: Mix four taels of lead with one tael of cinnabar, add one fen of alum, and decoct in a porcelain bowl with well water (drawn at dawn) until purple vapor emerges. Half a tael of alum combined with one fen of sal ammoniac, when refined with sulfur, yields the best results. Another method involves layering eight taels of silver flakes with cinnabar, sealing the mixture with vinegar and white chalk clay, and fumigating for seven days.

Finally, the passage mentions "Cinnabar Silver" (silver-bearing cinnabar) as an alchemical "container" (outer vessel) for cultivating cinnabar—referred to as "True Lead and True Mercury" (core alchemical materials), representing an advanced refinement technique. The entire text reveals the intricate formulations and esoteric procedures of ancient alchemical practice.

This passage elucidates the esoteric methods of lead-mercury amalgamation and cinnabar processing in ancient alchemical practice. The first section details the refinement of "true lead": one must select exceptionally soft and tender lead ore abundant in primordial Qi (qi). After smelting it into liquid form, add snow-white pure arsenic trioxide (avoid yellowish, hardened, or reddish-black inferior varieties). The precise ratio is two ounces of small arsenic chunks per ten ounces of lead. Cover the mixture in earthenware and heat gently in a cauldron—smoke emission is permissible. The crucial step is achieving complete liquefaction before pouring into a sand vessel to cool. The ideal arsenic product appears pale yellow; deeper yellow or red hues, though visually appealing, indicate excessive arsenic loss. Pale yellow signifies minimal lead content with robust primordial Qi, yielding arsenic brimming with spiritual potency. The text emphasizes that alchemy harnesses the "energy" rather than the "substance" of materials, revealing its most profound principle.

The second section explains the "Threefold Convergence Method for Deactivating Cinnabar": grind ten ounces of golden crucible arsenic (a specially prepared variant) into powder, mix with ten ounces of natural cinnabar (chensha), and seal within a specialized water-fire crucible. After fastening with iron wires, apply gentle heat below to maintain crab-eye boiling (small bubble formation). The fire must remain steady—neither too strong nor extinguished. If boiling ceases, it indicates overly thick medicinal layers, yet one must never intensify the flame. Sustain this process for six double-hours (12 hours), then extinguish the fire for overnight rest. After grinding the product, repeat the entire procedure five cycles until the cinnabar fully "dies" (loses reactivity). Finally, pulverize the twenty-ounce amalgam, melt it in a gan crucible (specialized alchemical vessel), and allow stratification upon cooling.

The concluding method describes cinnabar purification: when obtaining ten ounces of purified cinnabar, grind it into fine powder to serve as a "womb" (cultivation container) for nurturing raw cinnabar (unprocessed mercury sulfide). This embodies the Daoist alchemical principle of "using death to nurture life"—a distinctive technique in internal alchemy (neidan) practice.

This passage describes the practical method of "lead-mercury transformation" in ancient alchemy, divided into three steps:

The first step explains the purification of arsenic (pi). Begin by refining ten taels of cinnabar (zhusha) to obtain pure arsenic, which is then broken into small pieces. Next, melt ten taels of floral silver (baiyin) into liquid form and gradually add the arsenic pieces until fully dissolved. After intense boiling, the silver liquid will turn black due to lead content. Repeat this purification process four to five times until the silver remains snow-white, indicating complete removal of lead qi. The resulting arsenic possesses spiritual properties and can be used to make "containers" (kui), transform stubborn substances, or refine elixirs.

The second step is the "first transformation" method. Mix five taels of cinnabar lumps with rice vinegar, calcine in a separation furnace, then coat with powdered cinnabar. Seal this in a true-dead arsenic container (kui) and nurture with three taels of fire for seven days, followed by calcination with half a catty of fire. After cooling, five taels of cinnabar remain without mercury loss, suitable for making longevity containers. The nurtured cinnabar granules appear iron-colored, having undergone "fire submission" (fuhuo), and can be directly melted and cast into molds.

The third step, "second transformation," describes iron-to-silver conversion. Melt one tael of raw iron and add seven fen of nurtured cinnabar granules. Stir with red-hot charcoal for one shichen (two hours) before cooling. The iron transforms into a honeycombed silver block exceeding one tael, while seven qian of cinnabar granules remain intact on the surface. This method applies to various metals including copper, tin, brass, iron, and lead.

The mentioned "calcined lychee silver method" refers to a special refining technique, though the original text doesn't detail the procedure. Notably, the transformed cinnabar's potency diminishes after use, requiring seven days of re-nurturing in containers or grinding into powder mixed with honey to form cakes for recalcination.

The Compendium of Lead-Mercury Alchemical Treasures section details specific operational methods in alchemical practice, primarily focusing on the refinement process of cinnabar (dan sha). Here's the explanation by section:

The third transformation method for nurturing mother cinnabar describes this procedure: Each time take three to seven natural cinnabar pellets, preserving one original grain the size of a soapberry seed as the core. First wrap the cinnabar with ordinary sand, then encase it in two layers of fine silk cloth, binding it tightly before suspending it in a porcelain jar. Add water with a small amount of alum powder and boil for one double-hour (two hours). After removal, mix the separated sandy residue with honey to form cake-like wrappings. The boiled mother cinnabar is rolled into thick balls to dry on level ground. Soak two bowls of ash with vinegar to form a cap-shaped mound - first stabilize with four liang of fire, then apply three jin of fire at the top, gradually increasing to seven jin for calcination. After cooling and removing the ash, apply three jin, then another three jin, followed by one jin of fire until one-third reduction occurs. When the center glows red, it produces supreme-grade cinnabar. This refined cinnabar maintains its original core shape like red lychee fruit, yielding eight to ten liang. Add four liang of fresh mercury, grind to mix, seal and dry before nurturing with four liang of peak fire for seven days. Additional firing follows until the mercury and cinnabar complete their fiery transformation - this constitutes the fundamental method for nurturing mother cinnabar.

The fourth transformation method for nurturing three-seven mother cinnabar matrix states: Take twenty liang of refined cinnabar powder, first laying twelve liang at the container's base. Place five liang of three-seven mother cinnabar (previously boiled in alum water) in the middle, then cover with eight liang of cinnabar powder. After sealing, nurture with four liang of peak fire for seven days before calcining with three jin of fire. Upon cooling, the mother cinnabar completes its fiery transformation, and the container becomes increasingly efficacious with repeated use. Every seven days remove the product to add new material, repeating twenty times while gradually reducing mother cinnabar proportion in favor of mercury.

The fifth transformation method for nurturing mercury involves these steps: First compact twelve liang of previously refined mother cinnabar in the container, creating a central depression to pour equal or slightly less mercury, then cover with eight liang of mother cinnabar before sealing. After drying, nurture with four liang of peak fire for seven days before calcining with three jin of fire. The cooled mercury transforms into treasure. Similarly, remove the product after seven days to add new material, repeating twenty times until suitable for compounding.

The sixth transformation blending method proceeds thus: Grind the previously refined mother material into powder. For each liang of mercury placed in the cauldron, sprinkle one qian of mother powder to cover it. Seal with a small black cup covered by vinegar-soaked paper.

This describes the specific operational steps of the "lead-mercury method" in ancient alchemical practice, belonging to the Waidan (external alchemy) refinement techniques. The entire process requires strict control of firing temperature and timing, progressing through multiple stages of gradual purification.

The seventh transformation explains the method for creating the "Geng crucible" (a container and raw material mixture for alchemy): Take twenty taels of the medicinal powder obtained from the previous step, add two taels each of realgar and orpiment, half a tael each of chalcanthite and willow vitriol, and two fen of green vitriol. Grind these six materials into fine powder, wrap them in fine gauze, and suspend the package within a silver-lined porcelain jar. Separately, take one fen each of these six materials plus one fen each of soapwort vitriol and green salt, grind them together, and boil the medicinal package in vinegar for half a day. Afterwards, extract the cinnabar from the package, seal the container according to standard methods, let it dry, then place it on level ground. Apply three to four jin of fire for calcination, and after cooling, grind the contents and blow away the floating ash to produce the "cinnabar Geng crucible."

The eighth transformation begins cultivating the "mother Geng sand": Divide the material obtained from the previous step into ten portions. First lay seven portions at the container's base, then create sand grains weighing two and a half taels from six portions lead and four portions mercury. Wrap this in two layers of cloth, suspend it in the previously used vinegar for boiling medicines, and boil for two hours. After extraction, place it in the container's center, cover with the remaining three portions of material, seal, and dry. Initially nourish with five taels of fire for seven days, then calcinate with three jin of strong fire. The "mother sand" obtained after cooling becomes premium-grade "Geng," and this container permanently becomes the "long-life Geng crucible." Subsequently, every seven days add fresh material to matured material, repeating twenty times before reducing the mother material and increasing the mercury proportion.

Transformations nine through eleven detail the process of gradually decreasing mother material while increasing mercury content: Beginning with a six-mercury to four-lead ratio, each operation follows the previous methods of boiling, nourishing, and calcination. With increasing repetitions, the mercury proportion gradually rises to nine parts mercury against one part mother material. Each stage requires careful observation of material transformations—only when the materials display "Geng substance" (ideal metallic characteristics) can one proceed to the next step.

The entire process requires dozens of repetitions, aiming through gradual purification and ratio adjustments to ultimately produce high-quality "Geng cinnabar." This exemplifies the ancient alchemical pursuit of material transformation through meticulous control and persistent refinement.

This passage describes specific operational procedures in ancient alchemical practices, primarily focusing on the purification and transformation processes of cinnabar (mercury sulfide).

The twelfth refinement explains the method for creating the "dan tou" (foundational alchemical material) and separating impurities: First, melt sixteen taels of pure gold into powder, then prepare ten taels of "yellow sprout arsenic" (an arsenic compound) using the lead crucible method described previously. This compound is then boiled in a silver crucible, thoroughly ground with the gold powder, and sealed in a water-fire crucible (specialized alchemical equipment). The mixture undergoes gradual heating from gentle to intense flames for a full day and night. After extraction, it's reground with gold powder and slowly introduced into a red mother cauldron, covered with tiles to prevent ash contamination. Upon completion of firing and subsequent cooling, ten taels of purified yellow sprout arsenic can be separated.

The thirteenth refinement details the transformation and cultivation of "geng sha" (alchemical term for specially processed cinnabar): Take four taels of completely pure cinnabar, previously treated with medicinal vinegar used for geng sha preparation, and wrap it in gold foil. Cover this with the ten taels of yellow sprout arsenic powder obtained earlier, seal it, and place it in an ash pool for firing. First maintain with three taels of fire for seven days, then with four taels of fire for another seven days, concluding with one firing at two catties of fire intensity. After cooling, grind it evenly and seal it in the water-fire crucible for further firing. The resulting material is then ground and melted in a red-hot sweet cauldron, yielding four taels of purified cinnabar upon cooling.

The fourteenth refinement concerns the cultivation of "geng sprouts": Grind the previously obtained four taels of cinnabar into powder, mix it with 1.28 taels of geng sha (a specific alloy ratio), and continue the refining process using the established methods.

This passage describes specific operational procedures in ancient alchemical practices, focusing primarily on the refinement methods of cinnabar (mercury sulfide) and mercury. Let me explain section by section:

The fifteenth transformation details the method of transforming gold and mercury through mixed embryo technique: Grind cinnabar and sand together uniformly and let it rest for half a month. Then combine it with ten taels of "yellow sprout" (an alchemical term referring to preliminary refined medicinal substances) and arsenic trioxide, grind the mixture, and place it in a water-fire cauldron (a specialized alchemical vessel) for sealing. After drying, refine with intense fire for one full day and night. The next day, grind the product into powder, stir it into liquid form, cool it in a pot, and after natural separation, you obtain the Great Elixir of Geng (a high-grade alchemical medicine). At this stage, discard the arsenic and use only the refined cinnabar container to process mercury.

The sixteenth transformation involves: Taking two taels each of orpiment, realgar, chalcanthite, and sal ammoniac, grinding them uniformly with honey to form cakes, then sealing them in a yellow sprout-arsenic container for forty-nine days of cultivation. After retrieval when the substances have achieved "true death" (an alchemical term indicating stabilized properties), grind with eight taels of the aforementioned cinnabar and refine in the water-fire cauldron for one day and night. The resulting powder is then mixed with three taels of vinegar-boiled sulfur, sealed for twenty-one days (three times seven), and finally fired with half a catty of heat to produce the Great Elixir.

The seventeenth transformation explains mercury-to-gold transmutation: Boil four taels of cinnabar with medicinal vinegar, mix with one catty of container medicine, pierce holes to insert mercury, seal for seven or nine days of cultivation, and the retrieved substance transforms into golden treasure.

The eighteenth transformation describes the sprinkling-point method: Heat four taels of "dead mercury" (processed mercury) with yellow sprout-arsenic into liquid, remove the arsenic, then use mercury treasure to form a one-catty "chaos vessel" (spherical container). Place one tael of cinnabar inside, cover both inside and outside with yellow sprout-arsenic to about two fingers' thickness, seal and dry before cultivating in an ash pool for forty-nine days. The resulting medicine can transform the Five Metals (various metallic substances) and process all worldly mercury with immeasurable efficacy.

The final Golden Elixir method states: Using only processed mercury and gold as ingredients, add one tael of cinnabar into the chaos vessel, cover with container medicine and seal. Regulate the fire according to celestial cycles (adjusting heat in harmony with cosmic timing), employing bathing methods to complete one annual cycle (a full refinement period), thus producing the Great Elixir—hence called the Golden Elixir. One tael of Golden Elixir can be divided into three portions for use.

This passage details the concrete methods ancient Daoist alchemists used to refine elixirs, primarily involving the extraction and chemical reactions of various minerals. It begins with instructions for processing one jin of azurite (a copper-containing mineral) by grinding it together with chalcanthite, sulfur, and hematite into powder. The mixture is then melted into liquid under intense heat, yielding purple geng (a purple elixir base material) upon cooling.

The method for refining "Cold Yellow Spirit-Coagulating Cinnabar" involves: taking two liang of orpiment, half a liang of sal ammoniac, and one liang of oyster shell powder. First, the orpiment is placed in a vessel, sealed with oyster shell powder, and secured with salt-clay. After drying, it is calcined for a full day and night with four liang of fire intensity. The resulting material is ground finely, washed with hot water to remove oyster shell ash, dried, then stir-fried until the orpiment and sal ammoniac melt into liquid. After cooling, wax pills the size of arrowhead tubers are formed. Each pill can transmute one liang of black lead into high-quality metal.

The preparation of "True Dead Borax": Take one liang of borax and calcine it in a red-hot pan with one liang each of cross-veined grass and saposhnikovia root, covered with an earthenware lid until completely liquefied.

The method for "Dead Saltpeter": Grind saltpeter with small amounts of croton seed and gleditsia horn, then place in a red-hot pan while fanning to intensify the flames until melted.

Another "Cold Yellow" formula: Melt half a jin of black lead, then add half a liang each of green salt and sal ammoniac, plus three qian of arsenic. Stir-fry until the mixture turns purple. Each qian of the resulting elixir base can transmute ten fen of lead into a reddish substance.

The method for making elixir bases: Grind one liang of orpiment with two and a half qian of sal ammoniac, wrap in silk cloth, then encase in a paste made of cuttlefish bone powder, magnetite powder, and honey. Seal with a plaster made from polygonum herb paste and nurture for ten days, calcining morning and evening with two liang of fire intensity. The finished product can transmute substances. The formula includes precise ratios for sal ammoniac, chalcanthite, alum, and various other minerals.

Finally, a sublimation formula is mentioned: one and a half qian of sal ammoniac, one qian each of calcined cuttlefish bone and alum, one-thirtieth liang each of calcined green salt, flame salt, and tabasheer, plus one qian of green vitriol, one and a half qian of chalcanthite, and one qian of halite. All materials must be ground into fine powder, with each qian of medicine corresponding to specific proportions of other ingredients.

This passage documents several metal processing techniques from ancient alchemical practices, primarily concerning the transformation of lead and tin.

The first method details lead processing: Take approximately one qian (about 3.75 grams) of lead, sandwich it between layers of salt, and smelt with intense heat until liquefied. Another approach uses one jin (about 500 grams) of black tin (lead), mixed with one dou (about 10 liters) of pigeon-dung water for filtering out impurities. After melting the lead in a cauldron, pour it into the pigeon-dung solution until white substances appear. The treated lead is then hammered into thin sheets and mixed with one fen (about 0.375 grams) each of realgar and orpiment (two mineral medicines), ground together in a ceramic vessel. Add juice from pig's nostrum grass and oil, incorporate the powdered realgar and orpiment, then seal with four or five layers of medicinal herbs. After drying, smoulder for three days in an ash pit with gentle heat, then grind finely. In the container, alternate layers of lead sheets and medicinal powder, compact tightly, seal with clay, and smelt with intense heat to obtain yellow lead blocks.

The second method employs half a liang (about 18.75 grams) of orpiment, with one fen each of sal ammoniac and arsenic. First grind the orpiment separately, then pulverize the sal ammoniac and arsenic. Take an egg, make a small hole to remove the yolk while retaining the egg white. Place half the arsenic-sal ammoniac powder at the bottom, orpiment in the middle, and cover with the remaining powder. Seal the hole with the eggshell, using vitriol-water paste for closure. Place one jin of yellow lead (lead oxide) in an iron crucible, insert the prepared egg in the center, completely encase it with yellow lead, compact firmly, and seal with lime. Smoulder in an ash pit with half a jin of charcoal. After completion, add medicinal powder the size of a small bean per two liang of white tin, melt and pour in the medicinal solution to obtain golden substance after cooling.

The "sulfur cabinet method for cultivating lead into jade" is described: Boil sulfur for three days with juices from houttuynia and ground cherry herbs. After drying, add ten fire garlic cloves, mash with bittern water, seal with clam powder, bind with iron wire and salt-clay, then smoulder in an ash pit for seven days with precisely controlled heat—daily fire intensity meticulously regulated from two to four liang.

Finally, the preparation of "dead lead" is recorded: Drip kiwi fruit juice into roasted lead to deactivate it, then grind into powder for mixing with sulfur. These methods reflect ancient alchemists' experimental processes attempting to alter metal properties through mineral reactions.

This passage describes the processing methods for several special materials in ancient alchemical practices, primarily focusing on the production techniques of "mother cinnabar" (musha) and the "elixir head" (dantou).

Regarding the refinement of mother cinnabar: First, pound sanqi mother cinnabar (an alchemical ingredient) together with lotus root and spread the mixture in an oil vat, ensuring it remains uncovered by lead. Heat and calcine until the smoke from the lotus root completely dissipates. Then remove the mixture and prepare a blend of gallnut, aged mulberry leaves, and chebule (a medicinal herb) mixed with vinegar. Spread this over the vat and calcine as before until the smoke ceases. Next, wrap four liang of the mother cinnabar in Kunlun paper (a specialized paper) and nurture it for seven days, applying two liang of fire intensity daily.

For the elixir head's method of transforming lead: Take one liang of tripod arsenic (a mineral containing arsenic) and three qian of frankincense, grinding them into a fine powder. Mash five garlic cloves and soak them in water, then filter to obtain a bowl of green juice. Boil the arsenic-frankincense mixture in this juice until dry. Transfer it to a water-fire cauldron (an alchemical vessel) and steam until three cups of water evaporate. During preparation, press garlic onto the cauldron lid—raw arsenic can be directly processed this way, but tripod arsenic cannot. Take half a liang each of orpiment and realgar, boil them in brine for a day to remove lead vapors. If brine is unavailable, use saltwater. After boiling, rinse with boiling water to remove black residue, then dry.

Next, boil the orpiment with large-leaf mugwort for a day, then with fresh rehmannia for another day before drying. For processed sal ammoniac (dead nao), simmer it in iron-tower grass decoction for half a day, then cover it with iron-tower grass powder. Seal it in a crucible or earthenware dish and calcine with five liang of fire intensity until it liquefies. After cooling, remove the grass ash.

For processed saltpeter (dead xiao), first fumigate the cauldron with皂角 (soap pod), then melt the saltpeter and add licorice before pouring it into a trough. Use half a liang of dead xiao, half a liang of dead nao, and one liang of wood alum (a mineral). If wood alum is unavailable, substitute it with木鹅 (wood goose) from water willow trees. Grind into powder, simmer in lake water for a day, then dry and mix with half a liang of wood alum powder. Place in the cauldron and steam over low heat until one cup of water evaporates.

Finally, another method is recorded: seven qian of thatch grass and seven qian of tin, combined with half a qian of arsenic, five qian of alum, and cinnabar (mercury sulfide) for refinement. These intricate procedures all aim to produce an elixir head capable of transforming lead into "jade" (referring to the transmutation of base metals into precious substances).

This passage documents a specific operational procedure in ancient alchemical practices. The alchemist would sequentially place five materials into a gan pot (a crucible used for alchemy): first laying down five qian-weight of thatch grass as a base, then adding tin blocks, followed by powdered arsenic vitriol (an arsenic compound), and finally cinnabar (mercury sulfide, a red mineral pigment).

When these materials melted into liquid form under high heat, they were poured into specially designed oil channels to cool and solidify. This describes the concrete technical process for refining "yao" (likely referring to a certain type of elixir or metal alloy).

The content originates from the fifth volume of The Complete Compendium of Lead and Mercury as Supreme Treasures, belonging to the practical records of Daoist Waidan (external alchemy—the art of pursuing immortality through elixir refinement). Here, "lead and mercury" refer to the primary materials of alchemy, while "jia and geng" (the first and seventh Heavenly Stems) symbolize the importance of following specific temporal cycles in the alchemical process. This method of refining and combining metallic minerals reflects the ancient Daoists' exploration of material transformation.