《上陽子金丹大要》Vol. 6

In the sixth volume of Shangyangzi's Great Essentials of the Golden Elixir, the crucial role of "True Earth" in alchemical practice is specifically addressed. The earth mentioned here is not ordinary soil, but rather refers to the central earth nature within the Five Phases (Wuxing) that possesses harmonizing properties.

Master Boyang (Wei Boyang, author of Zhouyi Cantongqi) states: The nature of earth permeates all four seasons, sustaining the orderly operation of heaven and earth. The Dragon-Tiger Scripture records: The virtue of earth (tude) governs all directions, just as holding a sword without using force can pacify the world. The metallic essence within the Kan trigram (representing water) and the fiery energy within the Li trigram (representing fire) conflict with each other, while water and earth properties also counteract. Yet when earth's virtue operates in the western metal position, the three elements (metal, fire, earth) achieve harmonious coexistence, resembling the Yellow Emperor (symbolizing central earth virtue) bringing peace to the realm.

The alchemical formula transmitted by the Mysterious Maiden (Daoist goddess) mentions: The celestial stems Wu and Ji (earth phases) correspond to the cyclical patterns of heavenly Dao. Master Ziyang (Zhang Boduan) emphasizes: Without the harmonizing earth of Wu-Ji, even with the complete Four Symbols (Azure Dragon, White Tiger, Vermilion Bird, Black Tortoise), one cannot refine the Golden Elixir (Jindan). When wood and metal counteract, the "Yellow Matron" (symbolizing earth's mediating function) is needed to facilitate their union.

Earth exists ubiquitously in nature: the Di earth lodge in the east, the Liu earth lodge in the south, the Wei earth lodge in the west, and the Nü earth lodge in the north—these constellations coordinate with the sun and moon in celestial positioning. Specifically in alchemy: the Nü earth lodge in Kan trigram corresponds to Wu earth, while the Liu earth lodge in Li trigram corresponds to Ji earth—their union forms the embryo of the Golden Elixir.

Late summer (the transitional season between summer and autumn) marks the peak of earth qi, making it the optimal time for alchemical work. Though wood overcomes earth in the Five Phases cycle, wood's growth fundamentally depends on earth. Alchemical materials like lead, mercury, cinnabar, and silver all contain earth nature: Lead originates from the Dui trigram (western metal), yet its essence must be sought in Kan (northern water), for Kan conceals Wu earth. Introducing lead into mercury represents the process of uniting Wu earth (lead's earth nature) with Ji earth.

When Wu earth meets Ji earth, they crystallize into golden elixir blossoms (the nascent form of Jindan)—this reveals the mystery of "drinking the knife-guī": The "knife" signifies the lead nature within Wu earth, while "guī" represents the ritual implement formed by the union of Wu and Ji earths. The Ji earth in Li trigram intensifies solar radiance, explaining summer's heat and winter's warmth. The noon hour (wushi), though marking yin's initial emergence, belongs to solar yang—thus Ji earth symbolizes yin within yang, akin to the moon's waxing phase (dragon's crescent qi).

This scripture primarily discusses the crucial role of "the two soils of Wu and Ji" in Neidan (internal alchemy) cultivation. "The Wu soil within Kan" refers to the yang energy (Wu soil belongs to yang) contained in kidney water, akin to warm sunlight in winter. Though the Zi hour (midnight) belongs to yin, it contains the beginning of yang energy; the moon is yin, but Wu soil represents the yang within yin, much like the vitality of the tiger (symbolizing metal).

Both the dragon (symbolizing the original spirit, Shen) and the tiger (symbolizing the original essence, Jing) contain the energy of true soil (Wu and Ji). When the dragon and tiger interact, Wu soil and Ji soil combine, lead (original essence) and mercury (original spirit) merge, ultimately forming the Golden Elixir. Practitioners should grasp the true meaning behind this rather than rigidly adhering to literal interpretations.

Master Shangyangzi stated that the refinement of the Golden Elixir entirely relies on the harmonizing function of Wu and Ji soils. These two act like messengers conveying information between warring states or the Magpie Bridge connecting heaven and earth. Wu soil is called the "River Chariot" (the channel for circulating energy), while Ji soil is termed the "Ox Cart" (the foundation for stable operation), each playing a vital role. However, it's important to note that their application varies across different stages of cultivation.

The true immortals employed these metaphors to help later generations comprehend the profundity of the Great Dao of the Golden Elixir. As the Wuzhen Pian (Awakening to Reality) states: the Crimson Dragon (heart fire) and the Black Tiger (kidney water) reside in separate domains, and only through the mediation of Wu and Ji soils can the elixir be formed. When Wu and Ji unite, Kan (water) and Li (fire) naturally interact, and the dragon and tiger instantly coalesce within Wu and Ji to form the Golden Elixir. Through the refining process of yin and yang, a body of pure yang is ultimately achieved.

Wang Dao mentioned the patterns of the sun and moon's movement: when the sun and moon rise in the east, the metal qi of the White Tiger in the west transforms into the "Six Wu"; when they set in the west, the wood qi of the Azure Dragon in the east transforms into the "Six Ji"; at noon, the fire qi of the Vermilion Bird in the south enters the north. These observations illustrate the correspondence between celestial energies and human cultivation.

In the profound mystery of the cosmos, a substance condenses into black lead (a Daoist alchemical term symbolizing primordial essence). It exists in the primordial chaos before the formation of heaven and earth, serving as the origin of all things and the fundamental energy for refining the Golden Elixir (the highest achievement in Daoist cultivation).

Regarding the subtlety of fire times (the control of temperature and timing in alchemy), the Jinbi Jing (Golden Jade Scripture) states: "When first kindling the fire, it should be gentle and subtle, like the initial changes in the trigrams." The Wuzhen Pian (Awakening to Reality) emphasizes: "Even if one understands the wondrous uses of cinnabar (symbolizing the spirit, shen) and black lead, without comprehending fire times, all efforts are in vain." Wang Dao explains: "The key to refining the Golden Elixir lies entirely in mastering fire times. Fire is the parent of the medicine, and the medicine is the child of fire." Lüzu (Lü Dongbin) stresses: "True cultivation that penetrates the essence of life follows the Great Dao of the Golden Elixir transmitted by the Yellow Emperor. The profundity of the Golden Elixir lies in the regulation of fire times, which resembles the miraculous transformations produced by the interaction of Kan (Water) and Li (Fire)."

If a practitioner does not understand the coordination of lead and mercury (shen and jing) and the application of fire times, they cannot refine the Golden Elixir. When Master Cui transmitted the Tianyuan Ruyao Jing (Mirror of Celestial Origin for Medicine Absorption) to Lüzu, it was precisely to guide him in studying the art of fire times. Chan Master Daoguang remarks: "The ancient sages transmitted the formulas for the medicine but not the secret methods of fire times. Since antiquity, few have truly mastered it. Do not treat cultivation as child’s play—one must scrutinize it carefully, like the immortals." The Perfected Nirvana (Niwan Zhenren) points out: "Discard those minor techniques of heterodox paths and focus on fire times and the gathering of medicine. Simply extract the gold within water (primordial qi) and absorb it into the realm of emptiness, allowing the qi of the whole body to return to its origin—only then can the elixir be formed."

The Huangting Jing (Yellow Court Scripture) advises: "Understanding the movement of yang while maintaining the stillness of yin prolongs life; perceiving light yet guarding darkness is essential." Elder Qiyun says: "Within the human body, there are three pecks and three pints of true fire (vital energy), which must be protected from wind." The Commentary on the Wuzhen Pian explains: "Yang containing yin is the gentle breath of the dragon (shen, mercury), while yin containing yang is the vigorous breath of the tiger (jing, lead). Only when the two merge can the Golden Elixir be formed, which transforms the physical body upon ingestion."

Taking a single day as an example: During the Zi hour (11 PM–1 AM), yang qi begins to arise, and the pure yang qi from the kidneys ascends—this is the time to advance the yang fire (enhancing energy), corresponding to the Fu hexagram. At the Wu hour (11 AM–1 PM), yin qi first appears, and the supreme yin qi from the heart descends—this is the time to advance the yin talisman (restraining energy), corresponding to the Gou hexagram. Finally, Shangyangzi reveals: "Though fire times are the most concealed transmission, a glimpse may be offered—without fire times, the medicine cannot form; when the medicine matures, fire times naturally reach perfection. Without the medicine, fire times are meaningless; when fire times are correct, the medicine naturally manifests."

This passage elucidates the Daoist Neidan (internal alchemy) practice concerning fire times (the crucial technique of regulating intention and breath during cultivation) and the application of medicinal substances (the refined essences of Jing, Qi, and Shen within the human body). The refinement of the Golden Elixir (a metaphor for the purified Yang energy cultivated within the body) requires precise mastery of five key stages:

First is the principle of metal-fire conjunction. When the crescent moon first appears in the western sky on the third day of the lunar month, one should contemplate the undifferentiated chaos before the separation of Yin-Yang as described in Chapter 48 of the Cantong Qi (The Seal of the Unity of the Three). At this moment, pure primordial water (original Jing) naturally arises within the body, just as Master Zhang Ziyang described: "From emptiness and stillness emerges snow-white purity, within silence sprouts the yellow sprout of vitality."

Next is the application of martial fire (intense concentration) during the gathering of medicinal substances. Among the six phases of breath regulation, only two are required for this gathering, strictly following the instructions in Chapter 49 of the Cantong Qi to seize the moment when the medicinal substance emerges from the mysterious aperture (Dantian) and the fire timing activates in the Yang furnace (lower Dantian).

The third aspect concerns dosage control after the medicinal substances enter the cauldron (the refinement stage). As Wei Boyang analogized in the Cantong Qi, the initially refined Golden Elixir is only the size of a millet grain. Zhang Ziyang similarly emphasized the balanced relationship between "one measure of wood mercury" (original Shen) and "three pounds of metal lead" (original Jing).

The fourth stage involves fire regulation after true lead (original Jing) enters the golden chamber (middle Dantian). The process should be evenly divided into twelve segments (representing the twelve phases of the celestial cycle), with each segment requiring focused attention as described by Lady Wei Huacun.

The final stage completes the process of extracting lead and adding mercury (regulating Jing, Qi, and Shen). When lead and mercury fully merge and the Golden Elixir is achieved, the "infant" (Yang spirit) manifests. This requires repeated nurturing through hundreds of cycles as mentioned in the Cantong Qi. Master Bai Yuchan further explained that not only must practitioners continuously gather medicinal substances and apply fire, but all things in heaven and earth eternally operate through this same creative mechanism. Following this pattern makes one an ordinary person, while reversing the process leads to immortality—as Zhang Ziyang revealed through the mysteries of the "White Tiger's first cycle" (original Jing) and the "divine water of the jade pond" (nectar).

This passage elucidates the principles of fire regulation (huohou) and the inversion of Yin-Yang in Daoist Neidan (internal alchemy) practice. After receiving oral instructions from an authentic master, practitioners must comprehend the crucial importance of fire regulation—the meticulous control of intention and breath during cultivation. The relationship between lead (referring to kidney Jing-Qi) and mercury (referring to heart-mind Shen) resembles that of mother and child; while lead can generate mercury, true Golden Elixir (Jindan) formation ultimately transcends dependence on lead.

The anonymous adept (possibly a cultivation practitioner) explains that "emptying the heart" means relinquishing ego to achieve mental clarity, while "filling the abdomen" refers to refining Jing-Qi to nourish the Dantian (energy center). Laozi's concept of "embracing the One" signifies maintaining the Golden Elixir within the Dantian—when the heart is emptied, worldly distractions cannot interfere. Practitioners who fail to refine their essence first and recklessly dissipate Jing will never achieve elixir formation.

Master Zhengyang (possibly an honorific for Zhongli Quan) reveals that sovereign fire (heart fire) and commoner fire (kidney fire) ordinarily refine physical form, but through special methods can be directed downward. Similarly, jade liquor (saliva) and golden liquor (kidney essence) naturally descend, yet cultivation can reverse their flow upward—this embodies the principle of inverting Yin-Yang. Just as mundane convention dictates men govern external affairs while women manage domestic matters, adepts must reverse this pattern, making the external submit to internal mastery like an uxorilocal son-in-law. Such counterintuitive practice constitutes the path to immortality. Ordinary people experience fire ascending and water descending—this mundane condition precludes transcendence.

In the "Chapter on Marvelous Divine Transformations," Patriarch Zhongli teaches that seeking immortal companions to study alchemy requires selecting premium cinnabar and sulfur to refine the Great Return Elixir. Master Haichan (likely Liu Haichan) supplements this by explaining that when fire phases follow hexagram sequences to complete celestial cycles, the embryonic immortal (advanced Neidan achievement) can be gestated.

When cultivation reaches a certain level, the dantian (lower abdominal energy center) suddenly erupts with thunderous vibrations, as if the earth were splitting open, while the Heavenly Gate (Baihui point at the crown of the head) becomes unobstructed, radiating boundless light. At this moment, the practitioner's primordial spirit (shen) breaks through the Great Mysterious Pass (a crucial acupoint at the crown), marking the true attainment of an immortal body.

The Cantongqi describes this state: During sleep, the primordial spirit merges with the physical form, and upon awakening, one becomes aware of the presence or absence of vital energy (qi). The complexion grows increasingly radiant, and the bones become stronger. When all yin pathogenic energies are expelled from the body, the pure yang vital energy naturally establishes itself. With continuous cultivation, the internal qi flows like spring rain nourishing the earth or melting snow—comfortable and smooth—descending from the crown to the soles of the feet before rising again in an endless cycle, filling the entire body with gentle energy.

Master Shangyangzi (Chen Zhixu, a Yuan Dynasty internal alchemy adept) adds: After obtaining the Golden Elixir (a term in neidan referring to condensed life energy), the practitioner must nourish it with their own essence (jing) and qi. During cultivation, one suddenly feels the qi in the back rushing straight to the Muddy Pellet Palace (upper dantian) at the crown, producing a rustling sound as if something lightly touches the brain. Next, a sweet dew the size of a sparrow's egg slides down the throat—cool, crisp, and indescribably delicious. This experience confirms the completion of the Golden Liquid Returned Elixir (an advanced stage of neidan), at which point the dew must be slowly swallowed back to the dantian. Thereafter, one can often close their eyes and see the internal organs as clearly as if illuminated by a lamp, gradually enveloping the entire body in golden light.

The Elder of the Muddy Pellet (a neidan master) recalls: After a year of cultivation, the meridians settled, and the breath returned to its source. As Laozi said, "Concentrate the qi to attain softness like an infant"—this speaks of the art of gentle nurturing. Gentle nurturing means letting go of bodily awareness, closing the senses, appearing dull yet in harmony with the Dao throughout the day, never straying from cultivation. Like a hen incubating eggs, the warmth must not be interrupted, naturally revealing the mystery of "extracting lead and adding mercury" (a neidan term for balancing yin and yang)—initially using lead (kidney essence) to control mercury (heart-mind), but with daily practice, the heart-mind gradually increases while the kidney essence decreases, until lead and mercury fuse into the pure yang Golden Elixir, known as the Golden Liquid Returned Elixir. At this stage, the physical form transforms into clear qi, and the clear qi transforms into the primordial spirit—this is the so-called "infant" or "yang spirit."

The Huangtingjing states: "I see a child lingering and asking, 'Whose child dwells within me?'" Master Zhengyang (Zhongli Quan) explains: "A young child requires a mother's loving care." During the Jingding era of the Southern Song Dynasty, the immortal Lan Yangsu refined the Great Golden Liquid Returned Elixir and nurtured it for a long time at Yuelu Mountain. Later, he encountered Liu Haichan (a Five Dynasties Daoist) disguised as Li Yuxi, who offered him enlightenment. Upon hearing this, Lan clapped his hands and laughed loudly, and with a thunderous crack from his crown, he ascended in feathered transcendence.

This passage describes the supreme state attained through cultivation of the Golden Elixir (Jindan), the core practice of Daoist internal alchemy (Neidan). The figures mentioned—"Elder Laughing at Mount Yue" and "Ancestor of Pure Yang" (referring to Lü Dongbin, one of the Eight Immortals)—are both realized adepts who attained the Dao.

Ancestor Lü once taught: After persevering through nine years of fire-timing practice (referring to the skillful regulation of essence (Jing), vital energy (Qi), and spirit (Shen) in Neidan cultivation), suddenly the Celestial Gate (the Baihui point at the crown of the head, considered the passageway for the primordial spirit) bursts open. The True Person within (the yang-spirit achieved through cultivation) manifests, attaining great spiritual powers. At this moment, one celebrates the attainment of celestial immortality. Thus concludes the complete cultivation of the Golden Elixir path.

This describes the highest realm of Neidan practice—the emergence of the yang-spirit and transcendence into sagehood. The "nine years" should not be taken literally but symbolizes the prolonged cultivation process. "Fire-timing" refers to the precise regulation of intention and timing required throughout the practice.