《太古土兌經》

The Scripture of the Great Antiquity Earthly Alchemy (Taigu Tudui Jing) reveals essential techniques of ancient alchemical practice. It begins by explaining that "earthly alchemical substances" (tudui, referring to mineral ingredients) are crystallizations of heaven-earth essence and mountain-river Qi (vital energy). Some are nourished by Yin Qi and activated by Yang Qi, while others are generated through Yin and nurtured by Yang. Only through deep study of these principles can one master the laws of material transformation.

The text enumerates fundamental alchemical materials:

• Five Metals: gold, silver, copper, iron, and tin
• Four Sulfurs: orpiment, realgar, arsenic, and sulfur
• Eight Minerals: cinnabar, mercury, borax, saltpeter, salt, alum, chalcanthite, etc.

It emphasizes four critical alchemical operations:

1. Primary ore processing

2. Precise furnace temperature control

3. Understanding material properties

4. Mastering "subjugation" techniques (material ratios and reaction control)

Just as human breathing requires rhythm, alchemy first regulates Qi (vital energy), then combines medicinal substances—their harmonious interaction embodies the true Dao (the Way).

Three detailed alchemical formulas follow:

1. Yellow Sprout Technique (for Golden Elixir): employs 12 ingredients including realgar, orpiment, and cinnabar, supplemented with ox dung extract

2. Dyeing Agent Technique (material refinement): uses 9 substances like sal ammoniac and sulfur to remove impurities and enhance purity

3. White Medicinal Technique (for Silver Elixir): combines 7 components including turmeric and chalcanthite, possessing etching and cleansing properties

An additional copper treatment formula using 15 materials is appended.

The scripture particularly cautions that these secret formulas represent precious accumulated wisdom that must be carefully safeguarded ("stored in golden cabinets"), implying alchemy demands rigorous discipline and master-disciple transmission. Each formula specifies unique material properties like "preserving youthful appearance" or "removing discoloration," demonstrating ancient adepts' profound understanding of mineral pharmacology.

This scripture discusses the techniques of compounding elixirs in ancient alchemical practice, focusing on the interactions between different metals and medicinal substances. The key points include:

1. Metal interactions: Mercury (Hg) can react with five metals - gold, silver, copper, tin, and iron. For instance, gold powder combined with mercury forms an elixir, while copper reacts completely with mercury within seven days.

2. Effects of realgar (an arsenic sulfide mineral) and orpiment (another arsenic sulfide) on different metals: Gold combined with realgar accelerates reactions; silver with realgar achieves more thorough transformation; iron with realgar removes harmful components.

3. Effects of arsenic trioxide on metals: Gold undergoes distinctive changes when reacting with arsenic, while iron achieves a balance of hardness and softness.

4. Generative and controlling relationships between metals: Gold combined with silver becomes porous; silver with copper becomes loose; copper with iron contracts.

5. Essential refining techniques: Different metals require specific firing durations and temperatures. Gold needs 300 firings (best with cow dung as fuel), silver requires 200 (using charcoal), copper needs 300, while iron demands 500 firings (using coal).

6. Special mention is made of silver-to-gold transmutation methods through mercury purification techniques using dyeing processes.

The "Three Yellows" (Sanhuang) refer to the three arsenic-containing minerals - realgar, orpiment, and arsenic trioxide - commonly used in ancient alchemy. These methods reflect ancient alchemists' understanding of metallic properties and their experimental practices in altering metal characteristics.

The Scripture of Great Antiquity on Earthly Refinement (Taigu Tuidui Jing) discusses ancient alchemical methods for metallic transmutation, primarily concerning the treatment and mutual transformation of mercury, silver, copper, tin, and lead. Here's a modern interpretation:

Mercury-Silver Amalgamation Method:

• First decoct medicinal ingredients like orpiment root, red petroleum, and perilla oil
• Add equal proportions of mercury and silver, then boil for two to three days until the mixture turns yellow
• This substance can extract mercury for crafting vessels
• Detailed ingredient formulas are recorded in the scripture's middle scroll, with the entire process not exceeding twenty-one days

Copper Transmutation:

• Copper can be whitened either through dyeing or mercury amalgamation
• When treating copper with raw mercury, supplement with naphtha, clear glue, chalcanthite, and bittern brine
• After three to five days of boiling, heat in a cauldron before returning to the medicinal solution - repeat this process four or five times for success

Principles of Metallic Transformation:

• Each metal transformation requires seven or eight coordinated medicinal ingredients
• Tin is particularly noted for its easy fusibility, making it superior transmutation material
• Treating tin requires thirty days of boiling with non-ash wood, naphtha, and aged ox urine
• If ineffective, add bittern brine and boil under intense heat

Lead Treatment:

• Lead proves extremely difficult to transform - only the tin method can be attempted
• Adding processed realgar yields a genuine yellow substance

Key Doctrinal Emphasis:

• Mere metallic transmutation doesn't constitute true Daoist cultivation
• One must first comprehend the generative and restrictive cycles of the Five Phases (Wood, Fire, Earth, Metal, Water) before discussing transformative methods
• Only those fully versed in Five Phases theory qualify as genuine cultivators
• Master Zhang (possibly referring to Zhang Daoling, the first Celestial Master) attained the Dao before establishing these three sacred scrolls for worldly benefit and longevity cultivation

Crucial Mercury Transformation Method:

• To transmute mercury into gold, first process lead
• Proper lead treatment facilitates mercury refinement
• Obtaining the crucial substance makes yellowing straightforward
• Direct mercury processing requires supplementary ingredients if unsuccessful

Comparative Efficacy of Metallic Agents:

• Cinnabar processing yields best results, followed by realgar and orpiment, with arsenic being least effective
• Detailed efficacy ratios for various materials are provided
• Particularly notes that fire-transformed tin constitutes a medium-high quality method

This scripture reflects ancient alchemists' exploratory metallurgy, containing rudimentary chemical observations but primarily serving as symbolic cultivation theory. The practical methods intertwine with cosmological principles, where material transformations mirror spiritual refinement processes. The text ultimately subordinates external alchemy (Waidan) techniques to the higher understanding of cosmic patterns and self-cultivation.

This scripture primarily discusses the methods of medicinal processing and metal refinement in ancient alchemical practices. It can be understood in two main sections:

The first section explains the refining properties of different medicinal materials:

• When smelted with intense fire (torch fire), some substances disperse while others remain stable. Mineral-based medicines that retain their form after smelting yield five times the potency of ordinary herbs per liang (Chinese ounce).
• Solid wood and herb-based medicines have three times the efficacy of mineral substances per liang.
• When processing mercury, herbal and mineral ingredients require a smoke-free environment; dry processing methods demand knowledge of medicinal properties and fire control, with intense heat maintained consistently over time.

The second section details metal refinement:

• Iron can be refined up to a hundred times, becoming malleable and resistant to scorching with each hammering after smelting.
• Copper withstands fifteen refinements, extendable to twenty when combined with medicinal additives. Skilled furnace masters can refine it a hundred times without scorching, while novices burn it within three to five attempts.
• Silver loses its original properties after just two or three refinements. Copper-silver alloys must follow copper refinement methods.

The text concludes with a detailed "mercury-subduing method" (a mercury processing technique) formula:

Requires 1 jin (catty) of mercury, half-jin of lead oxide, half-jin of refined iron powder, half-jin of tin, 1 liang of rock salt, plus 1 liang each of hematite, five-vitriol, orpiment, and chalcanthite, along with 1 jin of salt. The procedure:

1. First melt the mercury, lead, and tin

2. Blend in iron powder while stirring

3. Remove and mix with other powdered ingredients, kneading with vinegar into a paste

4. Seal in an iron cylinder using specialized "six-one mud" (a fireproof sealing material)

5. Heat gradually in a double-layered furnace, monitoring temperature changes

6. Finally adjust the air vent to control heat intensity, completing refinement after specified duration

These methods reflect the empirical knowledge Daoist practitioners accumulated through mineral processing, containing embryonic forms of early chemical techniques.

This scripture primarily describes ancient Daoist methods for refining elixirs, divided into two parts: the "Subjugation of Realgar Method" and the "Subjugation of Cinnabar Method."

The first section, the "Subjugation of Realgar Method," details the process of refining realgar:

1. Required materials include realgar, white alum, mysterious essence (a type of mineral), rock salt, incombustible wood (a fire-resistant material), and mercury.

2. First, boil the realgar and mercury in honey water five times, then simmer in achyranthes root ash solution for two days.

3. Grind the other four medicinal ingredients into fine powder and mix with vinegar to form a paste.

4. Encase the realgar in this medicinal paste to create flat cakes, which are dried before being placed in a flat-bottomed crucible.

5. Layer the crucible bottom with salt powder, alternating between the medicinal cakes and salt layers.

6. Seal with an iron lid, leaving a small vent for airflow, and use specially prepared "Six-One Mud" to seal the opening.

7. Begin with gentle heat to dry the contents, then apply intense fire for seven days.

The second section, the "Subjugation of Cinnabar Method," explains cinnabar refinement:

1. Select premium cinnabar, combined with halite, chalcanthite, alum, and mirabilite.

2. First boil in lard for five days, then in brine for five days, and finally in vinegar for five days.

3. Create a paste from salt powder and vinegar to encase the processed cinnabar.

4. Finally, apply fierce fire for two days.

Important notes:

• Refined realgar may discolor if used alone.
• The text mentions that the method of Hugangzi (an ancient alchemist) yields the best results.
• These techniques represent secret formulas of ancient alchemy (Waidan) and should not be replicated by modern practitioners.

This passage discusses the ancient alchemical techniques of "mercury subduing methods" and "five metals transformation" in modern terms:

Regarding the mercury subduing alchemical method:

1. Material preparation requires purified tin (five jin refined into one jin), mercury (one jin), alum, sal ammoniac, sulfur (two liang each, ground and boiled in vinegar for 3-5 days), red vitriol (one jin), orpiment, selenite (half liang each), and crude saltpeter (two liang). All materials must be separately ground into powder.

2. Operational steps:

• First mix tin and mercury, adding one jin of salt and pounding evenly. The mercury will form fish-eye shaped granules, indicating successful initial transformation.
• In a vessel, layer 3-4 inches of salt, topped with crude saltpeter, then sequentially add orpiment and other medicinal substances, finally compacting the tin-mercury mixture.
• Cover with remaining medicinal powder, applying fire like the "flying elixir" method: gentle fire (low heat) for four days, then fierce fire (high heat) for three days, followed by one week of cooling.
• Repeat this firing process, then grind into powder. Each liang of this powder can transform one jin of metal into "supreme purity" (high-grade elixir).

3. Usage methods:

• Can be made into pills (with jujube pulp) or powder (wrapped in asbestos).
• When using, first melt copper, place the pill in a sheep tibia container, and stir in a pot. If the medicine doesn't dissolve, stir with peach branches.

Regarding five metals transformation:

• Iron refining requires adding subdued lead and tin, though not as complex as the tin refinement described earlier.
• Iron hammered thirty times and tin refined from lead ore, combined with processed mercury, can produce silver.
• If "white mercury" can be refined, the highest grade elixir may be obtained (though not for consumption).

Key points:

1. "Subduing" in alchemy refers to stabilizing material properties through specific methods

2. "Gentle fire and fierce fire" represent ancient distinctions of heat control, similar to modern low and high heat

3. These methods reflect ancient Daoists' exploration of material transformation, but note the toxicity of mercury, lead and other substances involved

The Middle Scroll of the Scripture of the Great Antiquity's Earthly Exchange records:

Precious metals and treasures of the world are but objects valued by mundane society. Yet we often see certain Dao practitioners obsessively seeking refining methods, retreating recklessly to mountain forests in the belief this alone leads to immortality. In truth, authentic cultivation doesn't depend on physical seclusion, but on tranquil comprehension of the Dao's principles. Daily life itself provides sufficient means for nurturing body and mind—no need to blindly pursue arduous techniques. Some obtain fragments of oral instructions only to disparage others, or employ wondrous prescriptions solely pursuing alchemical transmutation. Originally seeking the Dao, they instead forget cultivation's true intent, fixated on immediate gains—how could such people grasp practice's essence? Everywhere we look, such individuals number in the tens of thousands. To these, the essential methods of five-metal refining must never be transmitted.

(Note: The five metals refer to gold, silver, copper, iron, and tin.)

The foundation of refining metals and minerals lies in harmonizing primordial Qi (元气), with specific methods recorded in this chapter. Transmission is only for those genuinely pursuing Dao cultivation and nature refinement—never for those valuing treasures over self-cultivation. This text is preserved here for like-minded seekers of true learning.

On refining golden medicines:

• The basic formula requires genuine gold; through this method one produces secondary-grade gold
• If one obtains sublimed orpiment (伏雄), realgar (雌黄), cinnabar (硃砂), or arsenic (砒霜), genuine gold becomes unnecessary
• The upper scroll's method: Sublimed orpiment added to silver creates true gold
• Adding realgar or arsenic also works, though less effective than sublimed orpiment
• Sublimed cinnabar added to gold creates a supreme purple substance (though unsuitable for ingestion)

On refining silver medicines:

Three qualities are essential:

1. Impurity removal

2. Soft texture

3. Edibility

This method yields secondary-grade silver. With sublimed orpiment, realgar, or arsenic, through refinement one produces genuine gold and silver.

On refining mercury (水银):

Encase mercury in arsenopyrite (礜石) powder paste. First melt copper, then introduce the arsenopyrite-coated mercury—this whitens the mixture. Soften further with silver-natured medicines to produce the true substance.

On refining iron:

The primary method involves adding tin and lead. Without this, though other medicinal substances can refine iron, their efficacy falls short of lead-tin addition.

Specific iron-refining formula:

Lead from the elixir (5 liang) → Cook into solid mercury (2.5 liang)

(Note: This passage primarily describes ancient alchemical metal-transmutation methods. Modern science has confirmed these cannot genuinely alter metal properties. Daoist cultivation emphasizes self-refinement through alchemical processes rather than mere material transformation.)

The Scripture of Great Antiquity on Earthly Refinement records several methods of ancient alchemical practice:

Regarding metal refinement techniques:

1. Combine achyranthes root and sal ammoniac (1:1 ratio by weight), then refine tin with ox urine (3:2 ratio), adding arsenopyrite (1.5 liang). The specific procedure involves first melting iron, blending it with lead, tin, and mercury, stirring with a sheep's tibia bone, then adding sal ammoniac before finally incorporating powdered arsenopyrite. After repeated heating and forging five to six times, the molten mixture is poured into molds to yield white metal (with limited yield per jin of iron).

2. Method for refining iron essence: Take four liang of raw iron, melt it once, then immerse it in millet wine. Add small quantities of sal ammoniac (half liang) and arsenopyrite, stir vigorously, and return to the wine. Repeating this process ten to twenty times produces iron essence.

3. Another iron refinement technique: Repeatedly smelt iron in ox urine fifty times to obtain refined iron.

4. Tin processing method: Refine tin in cheese ten times, then treat it with mysterious essence (a mineral substance) ten times. For each jin of tin, use three liang of mysterious essence. Combine powdered tin and essence in a cauldron, stir rapidly, then overlay with one liang of cinnabar and half liang of refined iron. Finally, boil with specific medicinal formulas to produce high-quality silver.

Concerning metal transformation and medicinal additives:

1. For producing white metal, pre-treated mercury is preferable. When using raw mercury to create silver vessels, combine half jin each of realgar and cinnabar in a cauldron, adding one liang of raw lead to boil in wine for one day. After decanting, mix with realgar powder and mercury medicine, pound thoroughly, then boil in millet wine for fifteen days until the mercury turns yellow.

2. Mercury processing method: Take one jin of mercury and ten liang of lead from cinnabar (melting both materials together), then add two liang of premium cinnabar, three liang of true gen (a mineral), five liang of mysterious essence stone, and two liang of stone brain. Seal all ingredients in an iron cylinder and calcine for thirty days - the processed mercury becomes suitable for various metal refinements.

3. Cinnabar processing method (applicable similarly to realgar, orpiment, and arsenic): For each jin of raw material, combine with five liang of powdered oak bark and boil in vinegar.

(Note: These methods document historical Waidan [external alchemy] practices involving toxic substances and hazardous procedures. Modern readers must not attempt these techniques.)

This scripture primarily documents several mineral processing methods from ancient Daoist alchemy, belonging to the techniques of Waidan (external alchemy). Here is the modern interpretation:

【Alum Processing Method】

Mix one jin of alum with half a liang of mysterious essence (a type of mineral) and three liang of orpiment. First boil in honey water for twenty days, then simmer in brine for three days to complete the "subjugation" process (a heating technique that transforms the properties of medicinal substances).

An alternative method for subduing alum: Place the alum in a salt pot and roast for one day.

【Realgar Processing Method】(Same method as for chalcanthite)

Take two jin of realgar, two jin of mysterious essence, and three liang of sal ammoniac. Grind into powder and add five sheng of brine, then boil continuously for fourteen days. During this time, replenish the evaporated brine as needed.

【Magnetite Purification Method】(Also applicable to orpiment, azurite, malachite, etc.)

For every jin of medicinal material, add two liang of mercury. Crush, grind, and mix thoroughly, then perform the "flying" purification process (a water-based refining technique) for three days and nights, followed by resting for one day. After this treatment, only half a jin of the processed material is needed where originally one jin was required.

【Sulfur Processing Method】

First, boil one jin of sulfur in brine for one day, then place it in a silk pouch. Proceed through the following steps:

1. Boil in achyranthes root ash solution for one day

2. Boil in honey water for one day

3. Boil in mulberry ash solution for five days

4. Boil again in achyranthes root ash solution for one day

Then add half a jin of mercury and process for two to three days using the aforementioned method. Finally, boil with one sheng of high-quality cow's milk and half a jin of mercury for three days. The resulting sulfur is suitable for various uses, particularly for internal consumption (as an elixir).

【Gold-Making Method】(Technique for refining gold)

Take ten liang of high-quality mountain silver (gen refers to silver), grind into powder, and add one liang each of subdued realgar and orpiment, plus one liang of raw mercury. Grind until fully blended. Place in a specially made small crucible and seal the vessel with Six-One Mud (a specialized alchemical sealing clay). Begin with low heat for two to three days, gradually increasing to red-hot intensity, then allow natural cooling before breaking open the vessel. Crush the resulting substance and melt it again in a sweet pot (refining vessel). After clarification, superior metal is obtained.

Note: These methods reflect the complex mineral processing techniques of ancient alchemy. Substances like mercury involved here are toxic—modern practitioners must not attempt these procedures.

This passage describes a specific formula and preparation method from ancient alchemical practice. The primary ingredients include: ten taels of sulfur, one jin of mercury, and four taels of lead from cinnabar.

The procedure involves grinding these materials together and placing them in a new iron tripod (an alchemical vessel), where they are refined over gentle heat for forty-five days. Subsequently, the mixture is calcined over intense flame for two days until it turns reddish-purple, after which it is ground into powder.

Next, add one tael of raw realgar (an arsenic sulfide mineral) and one tael of finely ground chalcanthite (a copper sulfate mineral). The mixture is blended with ox urine to form a crucible-like shape filled with mercury. When heated from below for approximately two to three days, it transforms into what is termed "geng" (here referring to the resulting elixir or metallic substance).

This text documents a concrete operational process in Daoist waidan (external alchemy) - the pursuit of longevity through mineral drug preparation - reflecting ancient alchemists' exploration of material transformation. It's crucial to note that such ancient chemical experiments carried significant hazards, and modern practitioners must never attempt to replicate them.

The lower volume of the Scripture of the Great Antiquity Earth Alchemy discusses the variations in alchemical methods among different schools. For instance, the contents of the Grand Clarity Elixir Scripture are utterly incomprehensible to ordinary people, and even the precious oral instructions within it are rarely heard by the wise and capable. This is why the Yellow Emperor and the King of Huainan (referring to ancient rulers and alchemists who sought immortality) abandoned their thrones to pursue the truth of the Dao, and why figures like Lord Mao (Mao Ying, a Daoist immortal) and Yin Xi (a disciple of Laozi) forgot their worldly cunning after attaining the Dao. The secret techniques of Fox Ridge Master were passed down in three scrolls, while the metal-and-stone methods of Lord Zhang (likely referring to Zhang Daoling) were recorded in five chapters.

To grasp these profound arts of longevity, one must first understand the principles of Qi circulation. The medicinal theories written by Master Tao (likely Tao Hongjing) cannot be truly mastered without comprehending the relationships between sovereign, minister, assistant, and envoy (the foundational principles of herbal配伍).

Some schools understand only the nature of herbs but not their refinement; others know refinement but lack配伍 knowledge; still others grasp furnace techniques but fail to discern the hardness and softness of medicinal materials. Mastery of these secrets ensures success in alchemy. Below, I outline the essential points from various scriptures—those who receive this transmission must guard it well.

[Method for Subduing Cinnabar to Create Yellow and White Elixirs for Ingestion]

Formula:

• Cinnabar (1 jin)
• Magnetite (3 liang)
• Yellow Lead Oxide (5 liang)
• Lead from the Elixir (5 liang)

Procedure:

1. First, process the ores and medicinal materials, then add 3 liang each of alum and orpiment. Grind them together into powder.

2. Combine the prepared lead, yellow lead oxide, magnetite, and cinnabar in lard and boil for seven days until it turns white.

3. Add 3 liang each of Dangzhou saltpeter, Guazhou yellow alum, Mount Hao orpiment, and Beiting sal ammoniac, along with previously refined white mercury and magnetite. Simmer in vinegar for two days.

4. The resulting substance is called "Cinnabar Mercury" (also known as "Flowing Pearl"). Combine this with the lead from the elixir into a solid mass, pound it, and then boil in lard for thirty days.

5. If the transformation remains incomplete (unsubdued), add 2 liang of true gen (a mineral) and continue boiling.

6. The final product can be used to refine the Five Metals (gold, silver, copper, iron, tin). When combined with powdered saltpeter and sublimated cinnabar, it forms an elixir that prolongs life when ingested.

[First Method from the Grand Clarity Elixir Scripture]

Specific steps:

• Begin by dissolving mercury powder, cover it with salt, and sublimate (purify through sublimation) for two days.
• Use gentle heat (small flame) for two days, then intense heat (large flame) for one day, and finally allow it to cool.
• Add 5 liang of sublimated cinnabar to produce true gold (geng).
• This is the foundational method for refining the Five Metals; the second method is suitable for direct ingestion.

[Lord Mao’s Method for Subduing Mercury]

(The original text does not detail the specific steps here, possibly referring to another mercury-refining technique.)

Note: In the text, "subduing" (fu) refers to transforming the properties of materials through refinement; "sublimation" (fei) is the alchemical process of purification through vaporization; "sovereign and minister" denotes the primary and secondary roles of herbs in配伍. These methods involve refining heavy metals, now known to be highly toxic—modern readers must never attempt them.

The Scripture of the Primordial Earth Alchemy (Taigu Tudui Jing) is an ancient collection of alchemical formulas documenting several crucial elixir preparation methods:

1. Basic Cinnabar Elixir Formula

Required ingredients: Mercury (1 jin), Mystic Essence Stone (3 liang), five types of alum (2 liang each), crude saltpeter (3 liang), rock salt (3 liang), yellow lead oxide (5 liang), golden tooth stone (5 liang), sal ammoniac (3 liang). Grind all ingredients into powder, then simmer the mercury and herbs in premium vinegar (zuowei). Maintain a gentle boil (to the degree of fish-eye bubbles) in an iron cauldron, replenishing vinegar as it evaporates. Add additional herbs every five days. After twenty days, the mercury will achieve "subdued fire" (fuhuo, completing chemical transformation), making it suitable for refining the five metals.

2. Fox-Spirit Mystic Pearl Method

Primary materials: Mystic Pearl (1 jin), unrefined lead powder (5 liang), Mystic Essence Stone and True Gen mineral (2 liang each). First melt the lead and blend with Mystic Pearl. Separately, mix Gen mineral with mercury, add Mystic Essence Stone, and grind 100 times. Simmer in vinegar for thirty days. If the reaction remains incomplete, add one ge of "river chariot" (a mineral). Finally, incorporate 2 liang of iron essence powder and 4 liang of tin, stirring to form a powder. Combine with the previously prepared mercury and simmer for five days.

3. Subdued Fire Method for Realgar (applicable to orpiment, arsenic, and cinnabar)

Ingredients: Realgar (1 jin), stone gall (3 liang), white alum (1 jin), Mystic Essence Stone (5 liang), incombustible wood (3 liang), arsenic sulfide (5 liang). After powdering the ingredients, crush realgar to wheat-grain size, place in a silk pouch, and simmer with other powders in vinegar for twenty days. Remove and shape into cakes, wrap in herb residue, then roast in a salt pot for ten days. The final product resembles subdued fire metals.

4. Mystic Yellow Ointment Formula

Requires pre-processed "subdued fire" materials: mercury, realgar, orpiment, cinnabar, sulfur, and azurite. These must undergo triple sublimation (fei san bian), then refine with wine and water. Auxiliary ingredients include Shangdang poria cocos, ginseng, pine-cypress ash, mulberry wood ash solution, frost-treated coptis root, and honey.

Note: The term "subdued fire" (fuhuo) refers to ancient alchemical techniques for stabilizing toxic or volatile mineral medicines. These formulas reflect Daoist practitioners' exploration of immortality through mineral reactions, though modern science confirms most contain highly toxic compounds—strictly avoid experimentation.

This scripture records several alchemical formulas and operational methods from ancient Daoist practice, primarily concerning two types of elixir preparation: ingestible elixirs and the "Yellow and White Art" (huangbai zhi shu) for metal transmutation (i.e., alchemy).

Regarding ingestible elixirs:

1. Apricot kernel refinement method: Boil the kernels in water for seven days, continuously replenishing with warm water throughout. Prepared herbs (pre-treated "subdued medicines") are mixed with raw herbs, using two liters of honey per half-catty of herbal and half-catty of mineral ingredients. The fire must not be too strong—simmer gently over low heat for fifteen days while stirring with dried willow sticks until a paste forms. Finally, blend the powdered medicine thoroughly with honey and take one spoonful on an empty stomach with wine. Continuous use for a hundred days may lead to immortality. During this period, avoid the "five pungents" (onions, garlic, etc.) and twelve types of game meat, and steer clear of impure places.

2. Another formula: Grind coptis root, apricot kernels, and black beans into powder, using half a catty of this mixture per liter of honey. Simmer similarly for fifteen days. The administration method remains the same, and this can also be used for alchemical purposes.

Regarding alchemical applications:

• This medicinal paste can transmute mercury—adding half a spoonful per catty of mercury produces superior gold, which is also ingestible.
• An alternative mercury treatment: Place mercury in a green bamboo tube (unsealed) and boil continuously for four days and nights with zuowei (possibly an acidic solution) until black smoke ceases. The resulting material can be shaped into cakes that stabilize mercury when heated.

Key principles emphasized:

1. The essence of alchemy lies in controlling fire intensity and the "sovereign-minister-assistant-envoy" hierarchy (proper ratios of primary and secondary ingredients). While methods vary among schools, their underlying principles align.

2. If a grand elixir (high-grade dan) can subdue mercury, it can process the other eight minerals (ba shi).

3. The text mentions the wondrous applications of the "Threefold Reverted Elixir" (san huandan), stating that mastery of these three sacred volumes enables flexible production of gold and silver.

4. It particularly highlights saltpeter's (potassium nitrate) crucial role in thirty-six aqueous alchemical methods.

Appendix: Hydro-mica method (liquefying mica)

Formula: One catty of mica, half a liter of scallion juice, half a liter of honey, and half a catty of cinnamon juice. Seal the mixture in a bamboo tube with lacquer and bury for seven days until liquefied. If incomplete, steam for another day before suspending in well water for natural dissolution.

The concluding "Song Says" verse serves as an alchemical mantra, extolling the paste's miraculous efficacy while warning against wastage—lest divine retribution follow.

This scripture records several methods of ancient alchemical operations, which I will explain in detail:

1. Mica Elixir Preparation:

• Grind one catty of jade and one fen of magnetite into powder
• After mixing, seal and bury for ten days to form "male-female elixir liquid"
• Take one sheng of mica powder, add one catty of saltpeter, then mix with one catty each of realgar and orpiment powder
• Seal and bury using the same method to complete the elixir liquid

2. Purple Oil Elixir Refinement:

• Mix one catty of mercury with realgar and grind thoroughly
• Wrap in dough and steam in a basket layered with millet
• Change the steaming water three times daily for one full day before removal
• Add mercury during grinding, then place in a bronze vessel with half-catty saltpeter
• Bury for ten days, then add another catty of saltpeter and steam for four days
• Simmer over low heat for three days until slight color change, then increase to high heat
• After nine days it turns purple, then rest for six more days until red completion
• Can be used to transmute lead blocks to produce five-colored transformations

3. Purple Powder Sublimation Method:

• One catty mercury with half-catty sulfur
• Process using standard sublimation techniques, collecting the purple powder that surfaces
• Alternatively, heat in an iron bowl until smoke ceases before use

4. Lead Oxide Extraction:

• Melt one hundred catties of lead in an iron furnace
• Stir continuously with an iron spoon (similar to massicot production)
• Yields ten catties of lead oxide per hundred catties processed

5. Iron Powder Solution Preparation:

• Soak iron filings in black ox urine overnight
• Layer alternately in porcelain vessels: iron filings and emblic powder
• Thirty-one layers total, sealed and buried north of the house in shade for twenty-one days

6. Lead-Tin Transmutation:

• After obtaining lead essence, add two or three liang of raw mercury each time
• Line crucible bottom with ash, place purple oil elixir and lead-tin mixture
• Cover with ashes and furnace, repeating heating process five times
• Finally heat crucible red-hot before pouring out the yellow product

(Note: These methods involve heavy metals and toxic substances. Ancient alchemical experiments carried significant hazards—do not attempt replication.)

Interpretation of the Taigu Tuidui Jing in Modern Language

Alchemical Operations Section:

1. Preparation of Refined Mercury (Qian Gong):

Place the refined mercury into a Gongxian crucible, then wrap it with realgar and orpiment (two mineral substances) for the "subduing fire" process (low-temperature heating treatment). Seal the mixture in a bottle and wrap it with three layers of specially prepared medicinal clay. Heat alternately with gentle fire (low heat) and fierce fire (high heat) for twenty-one days. Success is achieved when the flame color turns uniformly yellow.

2. Preparation of Purple Clay (Sealing Material):

Mix one jin each of yellow lead (lead oxide) and realgar with five liters of vinegar. Soak the medicinal materials in the vinegar and dry them in the sun, repeating the process until the vinegar is fully absorbed. Then place the mixture in a crucible and heat with gentle fire until it turns red, then stop. If it turns white, it loses efficacy; if it turns to ash, it becomes unusable.

3. Preparation of Gold Powder:

Take one liang of "Dui" (possibly a type of metal) and five liang of mercury. Melt and mix them, then add three liang of "Diwei" (a certain mineral). Grind the mixture into a paste, place it in a crucible, and distill. After completion, wash away the Diwei and grind the residue into powder for later use.

4. Preparation of Yellow Salt Powder:

Mix one jin of Diwei, one jin of yellow fat, and one lump of "Huafen" with more than one liter of "Ehui" (alkaline ash). Heat at a constant temperature for ten days to complete the process.

Theoretical Section:

1. Sovereign-Minister Relationships:

Lead and mercury are the core materials among mineral-based medicines. Lead acts as the sovereign (primary agent), while mercury serves as the minister (supporting agent). Lead regulates the five viscera, while mercury expels the "Three Corpses" (three malevolent spirits believed by Daoists to reside in the human body). Azurite, as an emissary, brightens the eyes, and realgar, as a general, purifies the body. Refining and consuming these four divine medicines can lead to longevity.

2. Principles of Flying and Subduing:

Substances possess the contrasting properties of "yin flying and yang subduing" or "yang flying and yin subduing." Lead subdues mercury, called "yin subduing yang," while mercury permeates lead, called "yang subduing yin." For example, one liang of sulfur can subdue five liang of mercury—this is "yang subduing yang," indicating that mercury’s power is inferior to lead’s. Adding sulfur to mercury is called "flying," while adding lead to mercury is called "subduing."

3. Laws of Yin-Yang:

Ascension belongs to yang, while restraint belongs to yin. What appears to ascend may actually be yin in nature, while what seems to descend may be yang. Yin and yang transform into each other, so refining minerals requires their harmonious interaction. Pure yang subduing yang or pure yin subduing yin will not succeed. For instance, the frost produced from the reaction of sulfur and mercury must be combined with one liang of nine-times refined lead essence and sublimated again to create an ingestible elixir.

(Note: The terms "flying" and "subduing" frequently mentioned in the text are alchemical terms. "Flying" refers to sublimation or volatilization, while "subduing" denotes fixation or precipitation of substances.)

Interpretation of the "Scripture of the Great Antiquity Earth Dui" (Tai Gu Tu Dui Jing):

On Medicinal Transformation:

Just a small amount of medicinal substance (one daogui, a unit of measurement) can induce transformation in a person. When raw mercury is added to lead and subjected to nine cycles of sublimation (fei zhi jiu), a frost-like substance will precipitate at the bottom of the vessel by the ninth day. For every liang (about 37 grams) of raw material used, one jin (about 600 grams) of precious medicine can be obtained. Consuming it prolongs life and enhances vitality.

Hardness and Softness:

Lead added to mercury becomes hard, while mercury added to lead becomes soft. Though each substance is inherently soft, their combination creates mutual restraint. Mercury and lead can alternate between hardness and softness. Without these two, the transformation of the Five Metals (wujin) cannot be achieved.

Floating and Sinking Properties:

Metals tend to sink, while ores tend to float. When ingested, they produce an ascending effect. Even when metals fuse, they retain their heavy nature—hence the saying, "One stone matches one metal," which is another name for the Reverted Elixir (huandan), a high-level alchemical product.

Similar Substances:

Lead and realgar (xionghuang, an arsenic sulfide mineral) share the same origin, both belonging to the metal category. Orpiment (cihuang) and sal ammoniac (naosha, ammonium chloride) are analogous. Realgar requires sal ammoniac to develop its color. Lead governs metals, while realgar governs ores—thus, lead can transform both metals and ores. Without realgar and lead, the transmutation of metals is difficult. The refinement of the Five Metals also requires the participation of the Four Yellows (sihuang: realgar, orpiment, sulfur, and arsenic yellow).

Orpiment can also subdue various metal ores, akin to how honey water reacts with certain substances. Sulfur, when retaining its original color, can transform metals, much like a magnet attracts iron filings. Mercury resembles pine resin (shitingzhi), while arsenic resembles natural asphalt (shinao), quickly solidifying without volatilizing. Cinnabar (zhusha) behaves like strong wine, lead like mulberry wood ash, tin like litharge (mituoseng, lead oxide), and azurite (zengqing) like hematite (daizhe). When these analogous substances interact in harmony with Yin and Yang, they produce suitable transformations.

Mutual Restraint:

Gold restrains mercury, silver restrains raw iron and sal ammoniac. Gold weakens when encountering silver, silver becomes brittle with copper, copper hardens with iron, and copper and tin undergo mutual transformation. All metal ores are vulnerable to emblic myrobalan (yuganzi), hematite, and incombustible wood (buhuimu, refractory material), which can dissolve them. However, without the involvement of saltpeter (xiaoshi), success is impossible. Lead, mercury, orpiment, and realgar must be tested with fire—if they remain unmelted, unstirred, or dull in color, they cannot transform other metals.

Spiritual Essence:

Cinnabar is the product of the sun's essence (ri zhi zi) and embodies the principle of ceaseless regeneration.

The Scripture of the Great Antiquity Earthly Alchemy primarily discusses ancient metallurgical transformation and elixir preparation methods in alchemical practice.

Regarding metal refinement:

Successful metal refinement requires mercury as an essential component. Stone gall, yellow alum, and white alum serve as auxiliary materials, with gold and silver as foundational substances. Azurite functions as a catalyst, while the "Four Yellows" (including realgar and other arsenic-containing minerals) act as primary medicinal agents. Among these, realgar proves most effective, while azurite most potently enhances medicinal efficacy.

Elixir preparation methods:

• High-grade cinnabar combined with red salt and yellow salt, calcined in porcelain vessels for ten days, produces "Instant Divine Powder" capable of transforming mercury into violet metal.
• Sulfur combined with purple alum can instantly transmute mercury into gold, an effect replicated using Persian red salt.
• For gold refinement, one must first process lead and mercury treated with realgar, then combine with yellow and red salts. Using the "Clear Void Firewood Flame" (a Daoist technical term denoting specific firing techniques) for fifty days yields the Purple Radiance Elixir.

Additional alchemical techniques:

• Stone pavilion resin (a mineral), "Imperial Maiden's Blood" (likely a plant extract), mercury, and silver calcined for one hundred days produce gold.
• "Yellow Child" (possibly sulfur) boiled with Imperial Maiden's Blood for thirty days preserves medicinal properties.
• Sal ammoniac tests metal authenticity, dragon's blood fixes colors, gardenia provides pigmentation, and hematite enhances luster.

Special notes:

• Mercury processed a thousand times with lard transforms into silver paste, which when ingested purportedly confers longevity and strengthens bones.
• Cinnabar purified through sal ammoniac boiling achieves greater purity.

(Note: Terms like "Flying Frost Decoction" and "Imperial Maiden's Blood" likely represent ancient alchemical code names or specific formula designations whose exact meanings remain obscure today. These alchemical processes involve heavy metals and must not be attempted with modern understanding.)

This scripture describes the ancient alchemical method of refining "lead-mercury reverted elixir" (qian-gong huandan), which consists of several key stages:

1. Lead-Mercury Refinement:

• Combine lead (nine-return lead) and mercury (seven-cycle mercury) and boil for sixty days until transformed into a reverted elixir as fine as dust and bright as silver.
• This elixir can fuse with the five metals (gold, silver, copper, iron, tin), preserve youthful appearance, and expel the Three Corpses (Daoist concept of three malevolent spirits residing in the body) and Nine Worms (nine types of parasites).

2. Properties of Lead and Mercury:

• Lead possesses yang rigidity while mercury embodies yin pliancy - their union achieves perfect balance.
• When sulfur is added, it becomes "nine-lead"; after nine refinements it's called "nine-five."
• The "seven-cycle" process requires three sheng of sublimation pool water (special alchemical solution) and two sheng of plant ash water, filtered and boiled for one day, then simmered with lard for three days.

3. Yellow Sprout Refinement:

• Take the prepared nine-lead and seven-cycle mercury, sublime them seven times to obtain subdued plate frost.
• Knead the frost with sublimation pool water into pellets, then calcine in a Three Terraces furnace until achieving silver-like hardness.
• The resulting elixir can fuse with metals but remains unsuitable for ingestion until seven additional calcinations.

4. Medicinal Lead and Yellow Sprout:

• Further refine the medicinal lead in an underground furnace to obtain Yellow Sprout (the elixir's essence).
• When grinding and sublimating the Yellow Sprout with raw mercury, the ascending light portion is called "ascension material" (flight-capable elixir), while the descending portion is "water mother."
• The ascending elixir resembles a child clinging to its mother, the descending portion like a mother nurturing her child - both share identical medicinal potency.

Note: The term "earth method" (tudui) refers to clay-based refining techniques, while "Yellow Sprout" symbolically denotes the elixir's essential core. These methods reflect ancient Daoist technical practices pursuing immortality through mineral alchemy.