《紫陽真人悟真篇三註》Vol. 2

This passage explains the principle and significance of "the union of lead and mercury" (qian gong, internal alchemy terms representing the yin and yang energies within the body) in Daoist Neidan (internal alchemy) practice. The lead and mercury energies must perfectly match to form the Golden Elixir (the crucial stage of internal alchemy cultivation). Just as there are sixteen liang (two times eight) in one jin, or the moon becomes perfectly full on the fifteenth day, the harmonization of yin and yang energies must be precisely balanced—neither excessive nor deficient, perfectly centered for success.

During cultivation, one should follow the guidance from the Cantong Qi (The Seal of the Unity of the Three): "The true man dives into the deep abyss," maintaining focused awareness while eliminating distractions, allowing negative energies to naturally dissipate. The "mountain peak" metaphor represents the profound gateway to cultivation, as lofty as Mount Kunlun. When the mind becomes clear like still water, one attains the "newborn spiritual medicine"—not ordinary cinnabar or mercury, but the genuine qi of lead and mercury, which is the union of the "Spiritual Father and Divine Mother" (primordial qi). While ordinary parental essence follows the natural course to create human life, the cultivator's primordial qi moves inversely to achieve immortality.

The subsequent verse points out: cultivating only yin essence (the body's vital essence) alone cannot lead to attainment. Mere physical exercises like daoyin (guiding and stretching) or consuming qi and morning dew (Waidan, external alchemy methods) are ultimately futile. People blindly pursue the combination of lead and mercury without realizing the fundamental principle lies in tracing back to the origin of life (primordial qi). Only by returning to this root can one discover the true "Medicine King" (the foundation of cultivation).

Daoguang Zhenren (note: a renowned Neidan master of the Song Dynasty) explains that "yang within yin essence" in the verse refers to the body's true Jing (essence). Jing can transform into qi, and qi in turn nourishes Shen (spirit), sustaining the entire body. Just as an oil-deprived lamp extinguishes or a marrow-depleted person perishes, essence is indeed the foundation of human life. This section emphasizes that Neidan practice must be rooted in essence, returning to the primordial state through the harmonious union of yin and yang.

This scripture elucidates the core principles of cultivating the Golden Elixir (Jindan), emphasizing that relying solely on post-Heaven corporeal substances cannot attain the Great Dao (Da Dao). It explains that bodily substances like essence (Jing), fluids, and humors all belong to yin qualities and tend to dissipate easily. Without harmonizing them with the pre-Heaven true yang qi (the Primordial Unity Elixir), they cannot coalesce into the elixir. This is analogous to a hen's egg—without the rooster's vital contribution, it can never hatch a chick.

Zhongli Quan (Master Zhongli) points out that the seven bodily secretions—tears, saliva, essence, fluids, qi, blood, and humors—are all yin in nature. How could one possibly ascend to immortality by refining these yin substances alone? In truth, not only these secretions but the entire system of the five viscera and six bowels is predominantly yin. Some practitioners mistakenly equate the heart and kidneys to Kan (Water) and Li (Fire), liken the liver and lungs to the dragon and tiger, treat spirit (Shen) and qi as mother and child, or substitute bodily fluids for lead and mercury (alchemical ingredients). Such methods are as absurd as using ice to dispel cold or boiling water to reduce fever.

The text offers a vivid analogy: If two women share a dwelling, even with the most persuasive matchmakers like Su Qin or Zhang Yi arranging their "marriage," they can never bear offspring. This illustrates the folly of "refining yin with yin." As for practices like daoyin (guiding and stretching), massage, breath ingestion, or consuming celestial mists—these are merely minor techniques. At best, they can cure ailments or strengthen the body, but once discontinued, their benefits vanish. The Cantongqi (The Seal of the Unity of the Three) warns that such yin-based cultivation disrupts primordial qi (Yuanqi). Though practitioners may appear to ingest heaven-earth essences, they actually absorb pathogenic influences. Even if one practices day and night without rest, true accomplishment remains elusive.

This passage discusses common misconceptions in the practice of Neidan (internal alchemy), the Daoist method for cultivating longevity. Practitioners who constantly feel bodily exhaustion and mental haziness—as if becoming foolish—are actually straying from the true path, drifting further away from the authentic Dao.

The text reveals that the true essence of cultivation lies in the "genuine dragon and tiger" (referring to the Yin and Yang Qi), also called "true lead and mercury" (symbolizing the two vital energies within the human body). These originate from the celestial essence during the waxing and waning phases of the moon. Though this principle is fundamentally simple, many Daoist students stubbornly cling to misguided methods, mistaking counterfeit elixirs for true lead and mercury while dismissing authentic techniques—a truly lamentable situation.

Zhongli Quan (one of the Eight Immortals) warned: "Those who seek immortality without understanding true lead and mercury might as well read ten thousand alchemical scriptures in vain." Lü Dongbin (styled Chunyangzi) pointedly remarked: "Where does human life originate from? Cultivation means tracing back to this source. Through reverse cultivation, the genuine dragon and tiger will naturally submit, and true lead and mercury will return to their proper positions."

Some absurdly compare the sacred Dao to external elixirs like the "Primordial Guidan," akin to trying to reach the moon with a bamboo pole. All tangible substances produced in the postnatal realm make inferior medicines, for material things belonging to the "world of form" cannot align with the prenatal Dao (the cosmic origin).

Lu Xixing (styled Ziye) explained: "The Book of Changes states that the interaction of male and female generates all things—our physical bodies originate the same way. The principle of alchemy resembles procreation but operates in reverse: the natural sequence produces humans, while reverse cultivation refines the elixir. Between these two directions lies a difference as vast as heaven and earth."

Shangyangzi, quoting the Zhouyi Cantong Qi, emphasized: "Authentic cultivation isn't about flashy techniques—visualization practices, sexual arts, or other dubious methods." Peng Zu (the legendary 800-year-old immortal) observed: "People fail to grasp the root of the Great Dao, chasing after heretical paths instead. These methods violate celestial principles, completely contradicting the teachings of the Yellow Emperor and Laozi. Seeking longevity, they instead harm their vitality."

Zhongli Quan's profound insight cuts to the heart: "The gate of life and death turns on a single thought." Yet lamentably, "when the highest methods are spoken, none below comprehend them." Why? Because people stubbornly persist in misguided cultivation, invariably walking crooked paths.

The Perfected Purple Yang (Ziyang Zhenren) in Awakening to Reality (Wuzhen Pian) directly points to the crux of cultivation: when investigating the origin of life, excessive fixation may inadvertently reveal celestial secrets. Mortals receive their physical forms due to karma (cause and effect), and ultimately, they lose their vital energy (the single Yang) as karma dissipates.

Male practitioners may appear to possess Yang-dominant bodies, yet in truth, their inner constitution is suffused with Yin Qi. If one cultivates in isolation, how can they return to the primordial source? Without returning to this origin, how can one speak of transcending the mortal body? Thus, genuine seekers of the Primordial True Lead (the raw material of the Golden Elixir) must trace back to the very moment of conception—the source of life—to obtain the Primordial True Unity Qi (Zhenyi Qi) and achieve the return to the root. This is the fundamental path of male Daoist immortality.

For female practitioners, the mystery lies elsewhere. Their cultivation centers on the breasts as the gathering place of vital energy, following a simpler method. Male cultivation emphasizes refining Qi, while female cultivation focuses on refining the form. Women first gather Qi in the breasts, then establish the inner alchemical furnace (a metaphorical location in the body) to practice the method of Great Yin (Taiyin) body refinement. This path is the most accessible and contains profound subtleties.

The verse advises: Devote yourself to seeking the True Lead (Primordial Qi) and avoid wasting time. By mastering the Earthly Soul (kidney essence) to gather the Cinnabar Mercury (mind-spirit), one naturally uses the Heavenly Soul (original spirit, Yuanshen) to subdue the Water-Metal (original essence, Yuanjing). With such cultivation, even the Dragon and Tiger (Yin-Yang energies) will submit, and one’s Virtue (De) will grow so profound that even spirits revere it. Upon attaining longevity equal to Heaven and Earth, liberation from worldly afflictions follows naturally.

The Perfected Dao Guang (Daoguang Zhenren) annotates: The True Lead is the Golden Elixir (Jindan). In external alchemy (Waidan), the Earthly Soul refers to the White Tiger (lead), while in internal alchemy (Neidan), it signifies the Golden Elixir. The Heavenly Soul in external alchemy is the Azure Dragon (mercury), and in internal alchemy, it is one’s True Essence (Zhenjing). The Cinnabar Mercury in external alchemy is the Dragon’s Subtle Qi (Yang within Yin), while in internal alchemy, it is one’s True Qi. The Water-Metal in external alchemy is the Tiger’s Subtle Qi (Yin within Yang), and in internal alchemy, it is the Golden Elixir, also called Silver in Water. These are all metaphors for the medicinal substances of inner and outer cultivation.

Time flies, and life is fleeting—seek a true master swiftly to refine the Golden Elixir and transcend life and death. By subduing the White Tiger (original essence) and capturing the Azure Dragon (original spirit), the fusion of Yin and Yang energies forms the elixir. Then, using the Golden Elixir to transform one’s True Qi, the union of Qi and the elixir gives birth to the Sacred Embryo (immortal fetus). Once the external Dragon and Tiger are tamed, the internal spirit naturally stabilizes, and even the Ghostly Soul (Yin energy) submits, completing the dual cultivation of nature and life (Xingming Shuangxiu).

When the yin po (the body's yin essence) of a person is cultivated to a state of sacred purity, external ghosts and spirits will naturally revere them. Unless one possesses lofty virtue and complete cultivation, how could such a state be achieved?

Once the body is wholly transformed into a body of pure yang, one’s lifespan will endure as long as heaven and earth, transcending material constraints while still dwelling freely in the human realm. When all distracting thoughts are utterly eradicated, how could any afflictions remain?

Ziye (a Neidan master of the Song Dynasty) explains: The earthly po represents "lead" (the primordial essence of the kidneys), while the heavenly hun represents "mercury" (the primordial spirit of the heart). Using lead (essence) to restrain mercury (spirit) reflects the dynamic interaction between the cultivator and the natural order of heaven and earth.

Shangyangzi (a Yuan Dynasty Neidan master) emphasizes: When deliberately seeking true lead (the innate primordial essence), it is as Lü Dongbin, the Pure Yang Perfected Being, once said: "Even starting cultivation immediately would already be too late." Patriarchs throughout the ages have urged practitioners to begin their efforts early. Yet obtaining true lead—the crucial substance required for secluded cultivation—is exceedingly difficult. The poor worry about lacking resources, the wealthy fret over finding a suitable location, those with a location lament the absence of proper materials, and even with all materials prepared, they may still lack protective support (external safeguards during cultivation). Thus, those who seek it deliberately must first accumulate the necessary cultivation resources (Dharma wealth) and then select an auspicious site. As the Immortal Elder said, "At the outset, act in secrecy, unknown to others"—if one fails to find a hidden place for cultivation and is discovered, all previous efforts will be wasted.

Before formally beginning my own cultivation, I did not take this seriously enough. Only when I truly prepared to enter seclusion did I realize how arduous it is to deliberately seek the conditions for cultivation. Even if people receive authentic transmission from a master, they often squander their time—how could they know how swiftly the years pass, bringing aging and death? The earthly po is the innate primordial essence one seeks, while the heavenly hun is the accumulated primordial spirit within us. The Azure Dragon of the East Sea (symbolizing the liver’s vital energy) can subdue the moon-po of the Western River (the yin essence of the kidneys), and the White Tiger of the Western Mountains (symbolizing the lung’s metal qi) can refine the sun-hun (the heart’s primordial spirit) within us. When hun and po (essence, qi, and spirit) perfectly merge, one attains longevity equal to heaven and earth. By benefiting the world and accumulating merit, one naturally inspires reverence from ghosts and spirits. Through refining the self and elevating the mind, one tames the dragon and tiger (water and fire, yin and yang). Severing all worldly afflictions and attaining the true joy of immortality—this state of great freedom ultimately depends on the accumulation of vast virtue.

Yellow sprouts (the nascent yang qi) and white snow (the pure primordial spirit) are not hard to find, but those who awaken to the Dao must possess profound virtue. The four images (wood, fire, metal, water) and five phases (metal, wood, water, fire, earth) all rely on the central earth (the intention of the spleen) for harmony, while the three treasures (essence, qi, and spirit) and eight trigrams (heaven, earth, wind, thunder, etc.) all depend on ren water (the innate qi of true unity). The refined, numinous body is difficult for ordinary people to recognize; when all yin dregs are dissolved, even demons cannot intrude. Though one may wish to transmit the secret teachings in the human world, finding a true kindred spirit is rare.

This scripture elucidates the core principles of Daoist Neidan (internal alchemy) practice. Master Ziyang (Zhang Boduan, patriarch of the Southern Daoist School) reveals that the essence of cultivation lies in harnessing the energy generated through the "dragon-tiger copulation."

The dragon symbolizes Yang Qi, pure as white snow; the tiger represents Yin Qi, vibrant like newly sprouted yellow shoots. These two energies form the foundation of alchemical practice—deceptively simple yet requiring authentic transmission from a true master to comprehend. The Great Dao (Dao) gives birth to Primordial Qi (Qi) from emptiness, which then divides into Yin and Yang, manifesting as the so-called dragon and tiger.

Specifically:

The dragon belongs to Wood and generates Fire; the tiger belongs to Metal and generates Water. These four elements—Wood, Fire, Metal, and Water—constitute the "Four Symbols." When the Four Symbols merge, they refine the Great Elixir (Golden Elixir). However, the key lies in Earth—though formless, it permeates all four seasons. Without Earth's harmonizing function, the seasons cannot cycle and the myriad beings cannot transform. Thus both the Four Symbols and Five Phases rely on Earth's mediating power.

Ren Water (the Heavenly Stem Ren corresponding to Water) symbolizes Primordial Qi, existing prior to Heaven and Earth. This Qi transforms into the Yang dragon and Yin tiger, whose union forms the elixir—whose fundamental nature is Earth. The dragon's Wood, the tiger's Metal, and the elixir's Earth constitute the "Three Natures." All these transformations stem from the unfolding of Primordial Qi.

The Bagua (Eight Trigrams) likewise emerge from Primordial Qi's transformations: the first change produces Qian (Heaven, the father), the second Kun (Earth, the mother). When Qian's Yang Qi and Kun's Yin Qi unite, their first interaction generates Zhen (eldest son), their second Kan (middle son). These transformations all result from the dynamic interplay of Yin and Yang energies.

This passage expounds the core principles of Neidan (internal alchemy) practice in Daoism. It begins by using the Kan trigram (representing water) and Gen trigram (representing mountain) from the Yijing's Bagua (Eight Trigrams) to illustrate the interaction of Yin and Yang: when Qian (Yang) and Kun (Yin) interact, they generate transformations of three Yang and three Yin lines, all of which depend on the transformative function of the "True One's Water" (referring to primordial Qi).

The text emphasizes that all phenomena in heaven and earth—including the Three Treasures (Jing, Qi, Shen), the Bagua, and all material forms—originate from this "True One's Essence." Master Zhenyi (a Daoist perfected being) states that this primordial Jing-Qi is the foundation of all creation, serving as the source of both Yin-Yang and the basis for all phenomena including water-fire, sun-moon, and the Five Phases (Wood, Fire, Earth, Metal, Water). Whether natural formations like mountains, rivers, and celestial bodies, or perfected beings who attain immortality through cultivation, all emerge from the nurturing transformation of this "lead-energy" (referring to primordial Qi).

For practitioners, the key lies in obtaining and transforming this "True One's Water." Through specific methods, it can be refined into "True One's Millet Pearl" (a metaphor for the Golden Elixir). When swallowed into the Dantian (energy center) and nurtured for ten months (symbolizing the cultivation cycle), it refines away all Yin-substance to achieve a body of pure Yang. At this stage, Yin-demons and corpse-ghosts (representing negative energies within the body) naturally cannot cause harm.

However, attaining immortality is no easy feat—it requires accumulating virtuous roots over multiple lifetimes and developing spiritual bones (referring to cultivation foundations). Those who fantasize about achieving immortality through simplistic practices are as unrealistic as walking corpses and hungry ghosts. True Dao cultivators must possess transcendent aspirations, taking the propagation of the great Dao as their mission, persisting in practice even when ridiculed. Ultimately, they will encounter true masters who transmit the supreme Dao, joining like-minded practitioners to accomplish the great work of the Golden Elixir.

The passage concludes with a lament: though one wishes to leave cultivation secrets for the world, finding true understanding is as rare as encountering someone like Zhong Ziqi (the legendary connoisseur of music)—discerning individuals who genuinely comprehend the Dao are exceedingly difficult to find.

Master Ziyang (a key figure in Daoist Neidan/internal alchemy) explained through his disciple Ziyang that "yellow sprouts" refer to the essence of lead (a Neidan term symbolizing the body's primordial Jing/essence), while "white snow" represents the vaporized state of mercury (symbolizing Shen/spirit). To obtain these two substances, one must cultivate noble moral character.

Here, "earth" represents the central soil of the Wuji (the Five Phases' central earth), and "ren" refers to the innate true singular water (the foundational Qi/vital energy of life's origin) - the fundamental energy behind all growth and transformation in existence. Master Shangyang further clarifies that both yellow sprouts and white snow emerge from the undifferentiated primordial state as manifestations of true singular Qi. While earlier passages emphasized the need for focused intention to find true lead, this section reveals that yellow sprouts and white snow aren't difficult to locate - the true challenge lies in the practitioner's De/virtue.

Some beginners perceive apparent contradictions between these two poetic teachings, unaware that without moral cultivation, one can never achieve the Golden Elixir. As the saying goes: "Those whose words and deeds don't align shouldn't presumptuously discuss Dao cultivation." Understanding principles without accumulating virtue is like fish trying to survive without water or lamps burning without oil - how could one possibly refine the returning elixir? The complex terminology of four symbols, five phases, three origins and eight trigrams ultimately all return to the fundamental true singular ren water.

The Daoist immortal Huangfang Gong once praised Lü Dongbin (the Immortal of Pure Yang) saying: "The alchemical cauldron must harmonize with the four symbols and five phases, while the medicinal ingredients follow the three origins and eight trigrams." The red phoenix (symbolizing heart fire) exhales southern marrow, while the black tortoise (symbolizing kidney water) contains northern sea essence - both expressions point to this same truth. This aligns perfectly with Patriarch Lü's verse: "The alchemical cauldron revolves with the seasons' central pivot, while the medicinal process follows the three origins and eight trigrams." Though enlightened immortals compassionately guide practitioners, the crucial factor remains the cultivator's personal practice.

Once this Golden Elixir is perfected, even the Jade Emperor would praise its achievement, and all creation would revere it - hence its designation as the supreme, authentic numinous treasure and miraculous nine-return great elixir. This represents the ultimate teaching originally transmitted by the Celestial Worthy of Primordial Beginning (Daoism's highest divinity).

This passage describes the wondrous transformations that occur when cultivating Neidan (internal alchemy), the core practice of Daoist cultivation. When an adept successfully refines the Golden Elixir, miraculous changes manifest in the body: the Yang Shen (a pure yang energy body developed through cultivation) appears, becoming what we call a "Zhenren" (True Person); while the yin-demons and pathogenic qi within transform into guardian deities. The Green Dragon and White Tiger (representing liver and lung qi), the Vermilion Bird and Black Tortoise (symbolizing heart and kidney qi), the Three Hun and Seven Po (soul components), the Three Origins and Nine Palaces (key energy centers in the body), along with the Five Viscera and Eight Consciousnesses (organ systems and cognitive functions) - all transform into divine beings. The body's thirty-six thousand channels of Jing-Qi (vital essence) become celestial soldiers and generals.

The author laments that while wishing to transmit these secret methods, few in the world truly believe and practice them. Genuine adepts who attain the Dao like Xinglin Zhenren (the famous Three Kingdoms period physician Dong Feng) are exceedingly rare. Just as plants require balanced yin-yang to grow—where young green leaves manifest yang dominance, while subsequent red flowers follow yin principles—so too must cultivation understand this mutual generation of yin-yang. Without grasping this fundamental principle, all cultivation efforts prove futile.

Daoguang Zhenren (a renowned Song Dynasty Daoist) explains this using botanical metaphors: Before sprouting, plants contain primordial, unrefined energy; when budding, they receive the One Qi (primordial qi)—the first leaf symbolizing this unitary energy, the second pair representing yin-yang division, and the third leaf corresponding to Heaven-Earth-Humanity triad. During spring and summer's yang abundance, foliage flourishes and flowers bloom; when autumn and winter's yin dominance arrives, fruits form and leaves fall in perpetual cycles. Without either yin or yang, nothing could grow. As Zhen Yizi (a Daoist philosopher) stated: "Solitary yin cannot generate; isolated yang cannot grow." Only through Heaven-Earth's yin-yang communion can the myriad things manifest, just as male-female union creates life—this is nature's immutable law. The profound mystery of cultivation lies in reversing this process (returning Jing-Qi-Shen to their primordial states). Without comprehending this principle, transcendence of the birth-death cycle remains impossible.

This passage reveals the mystery of Yin-Yang transformation in Daoist Neidan (internal alchemy) practice. Masters Lu Ziye (Ziye) and Shangyangzi use the natural phenomenon of plant growth as a metaphor for the formation of the Golden Elixir within the human body.

Just as plants sprout, blossom, and bear fruit when touched by Yang Qi, the human body contains genuine Yang energy. When this true Yang combines with true Yin—much like plants producing fruit—it forms the "sacred embryo" (a Neidan term referring to the coalescence of Jing, Qi, and Shen). Ordinary people experience these Yin-Yang transformations daily yet remain unaware of their fundamental principles.

Shangyangzi further explains that all living beings between heaven and earth depend on the interplay of Yin and Yang energies for growth. Though plants are insentient, they naturally follow spring's Yang energy to grow and fruit; humans, as the most spiritual of creatures, often fail to comprehend the principles of Yin-Yang waxing and waning. This reveals a crucial practice insight: following the natural course of Yin-Yang leads to ordinary human reproduction, while reversing this process creates the elixir. This "reversal" means male practitioners must restrain Yang energy (returning to feminine qualities), while female practitioners must activate Yang energy (returning to masculine qualities).

The subsequent poetic formula vividly illustrates: just as men cannot naturally conceive children or lotuses grow in fire, seemingly impossible feats become achievable through the "mysterious reversal of reversals" in alchemical practice. The sun (Li trigram, belonging to Yang) must transform into Yin, while the moon (Kan trigram, belonging to Yin) must become Yang. The "elixir" produced through this Yin-Yang inversion can refine one's vital essence (mercury), ultimately forming the sacred embryo—this resembles male pregnancy, demonstrating the wondrous effects of Yin-Yang reversal in cultivation.

The passage concludes by emphasizing that without guidance from a true master, haphazard practice is futile. When all Yin energies are fully transformed (the "group Yin fading completely") and the Golden Elixir matures, practitioners transcend the bonds of life and death to attain longevity.

This passage explains the principle of "Dragon-Tiger Copulation" (Longhu Jiaogou) in Daoist Neidan (internal alchemy) practice. The dragon (Azure Dragon) represents mercury (mental spirit/Shen), associated with the eastern Wood phase; the tiger (White Tiger) represents lead (original essence/Jing), associated with the western Metal phase. Both actually originate from the same "True One Essence," merely positioned in different directions. It's like sending the eastern family's son (Metal Lord) to be raised in the west—during cultivation, we must recall him back to his eastern homeland.

In Waidan (external alchemy) practice, one must regulate the firing times like the moon's phases: during the waxing moon (8th lunar day), gather eight liang of western Yang Metal; during the waning moon (23rd lunar day), gather half a jin of eastern Yin Water—combining these two half-moons forms the complete Golden Elixir (Jindan). In Neidan practice, this external elixir is ingested internally, allowing the White Tiger (original essence) and Azure Dragon (mental spirit) to unite within the body. Through the firing process of Yin-Yang interaction, they transform into the Golden Fluid Returning Elixir.

The "fire" mentioned here isn't ordinary flame but the primordial Qi (Yuanshi Zuqi). Nor does alchemy require physical furnaces—as Qingxiazi stated: "The cauldron isn't made of metal, nor the furnace of jade." True fire arises from the Li trigram (heart), while water circulates through the Kan trigram (kidneys). When the three natures of Jing (essence), Qi (vital energy), and Shen (spirit) converge, the two substances of Yin and Yang naturally combine, producing miraculous transformations in an instant. As Gao Xiangxian described: "The intercourse of Heaven's and Earth's Yin-Yang resembles the union of man and woman; the four symbols and five phases (Wood, Fire, Earth, Metal, Water) gather accordingly, while day and night alternate like the shifting of the Zhun and Meng hexagrams from the Yijing."

This passage elucidates the core principles of Daoist Neidan (internal alchemy) practice. Practitioners need not deliberately pursue "fire timing" (referring to the regulation of intention during cultivation). The key lies in maintaining mental tranquility, adjusting breathing rhythms, and allowing the "civil and martial fires" (the natural fluctuation of intentional focus during practice) to operate spontaneously with precise timing. Through this method, one can swiftly refine the Neidan (the concentrated essence of energy within the practitioner's body).

After the elixir forms, one must continue cultivation according to the waxing and waning patterns of Yin-Yang, employing the "addition-subtraction" method (regulating the intensity of intention) to guard against dangers. After ten months (a symbolic cultivation cycle) of dedicated practice, when all Yin qualities are eliminated and the body transforms into pure Yang, one transcends the bonds of life and death to attain longevity. This constitutes the authentic "Golden Liquid Returned Elixir" (the advanced achievement of internal alchemy).

To reach higher realms, however, requires nine years of "embracing the origin and guarding the One" (single-minded cultivation), allowing primordial Qi and the original Shen (spirit) to completely merge, thereby refining the "Ninefold Revolving Golden Liquid Great Returned Elixir" (the highest level of internal alchemy).

Ziye (one commentator) explains that Yin and Yang mutually contain each other: Yang resides within Yin, and Yin within Yang—just as lotuses grow from fire, water hides within flames, vitality emerges from destruction, and life force dwells within lethal energy. The White Tiger (symbolizing kidney Jing-essence) represents the untamable "golden essence" (primordial energy), which is actually our innate vitality that has dissipated outward. Cultivation involves retrieving this energy, akin to guiding a precious pearl back home. After "obtaining the medicine" (acquiring the elixir's energy), one need only maintain mental serenity and nurture it naturally without forced augmentation or reduction.

Shangyangzi (another commentator) adds that the profound mechanism of Yin-Yang transformation holds the method for the Golden Elixir's return to primordial origins. The metaphor of "growing lotuses in fire" illustrates using the Kan trigram (water) to replenish the Li trigram (fire). Though the White Tiger proves difficult to tame, it contains the energy of Taiyi (primordial Qi). After attaining the elixir, one must use the original Shen to regulate breathing and nurture it—as Zhuangzi described the true person breathing through their heels, or Guangchengzi's teaching that genuine respiration resembles the crane and tortoise's natural, unhurried breath without deliberate manipulation. When Yin qualities are completely purified into Yang, one transcends mundanity to enter sagehood.

Finally, the passage reveals the ancient and rarely understood "Three-Five-One" cultivation secret (representing the harmony of water, fire, and earth): Eastern Wood (3) combines with Southern Fire (2) to make five; Northern Water (1) joins Western Metal (4) to make five; while Central Earth inherently contains five. When these "three families" (Jing, Qi, and Shen) unite to form the "infant" (metaphor for the internal elixir), this infant embodies primordial true Qi. Through ten months of gestation-like cultivation, it establishes the foundation for attaining sagehood.

This passage presents the core concept of “Three-Five-One” in Daoist internal alchemy. In the Five Phases, Wood corresponds to the number three and the East, while Fire corresponds to two and the South. Wood generates Fire, and the two belong to the same palace—a term in cultivation that refers to an energy field associated with a particular direction. Thus, two and three combine to form “One-Five.” Metal corresponds to four and the West, while Water corresponds to one and the North. Metal generates Water, and the two share a palace, so four and one combine to form “Two-Five.” Wu and Ji, which refer to Earth at the center, inherently correspond to the number five. This is “Three-Five.”

When Three-Five unite as one, it is called “Three-Five-One.” Since ancient times, very few people have truly grasped “Three-Five-One” and refined the Golden Elixir. This “One” is the Golden Elixir: the “True One Qi” that exists before birth, the primal energy from which the cosmos originates. It is the mother energy that existed before Heaven and Earth took form. The “True One Qi” within our bodies is its offspring. During cultivation, the mother energy must subdue the offspring energy, like a cat catching a mouse and keeping it from escaping. The two energies mingle in the Dantian, the body’s energy center, like a fetus developing in its mother’s womb, and eventually form the “infant,” meaning the Neidan.

The phrase “Taiyi contains the true Qi” means that it contains this True One Qi. Just as a human gives birth naturally after ten months of pregnancy, when the sacred embryo—the Neidan—has been fully cultivated, one can naturally attain the sacred realm. Hence the saying, “When the ten-month embryo is complete, the foundation of sagehood is entered”: completing the full cycle of cultivation lays the foundation for attaining the Dao.

Another interpretation holds that “Three-Five-One” represents the numbers of the Five Phases—Metal, Wood, Water, Fire, and Earth—with “One” symbolizing Taiji. When the Five Phases remain separate, each retains its own qualities; when they merge, they return to the original substance of Taiji. If practitioners can unite the Five Phases as one, they can return to the state at the beginning of primordial chaos and reveal the first form of the “infant,” or Neidan. This is the subtle meaning of “the three families meeting,” the union of Jing, Qi, and Shen. After a full ten-month cycle of cultivation, the energy within the body transforms naturally, in keeping with the principles of cultivation revealed by the sages of antiquity.

This scripture discusses the relationships of mutual generation and restraint among the Five Phases (Wuxing) in Daoist Neidan (internal alchemy) practice, and how to cultivate the Golden Elixir (Jindan) by harmonizing these phases.

The East corresponds to Wood (Mu), represented by the number three and symbolized by the Azure Dragon (Qinglong), which signifies mercury (symbolizing the original spirit, Yuanshen) within the human body. The South corresponds to Fire (Huo), represented by the number two and symbolized by the Vermilion Bird (Zhuque). Since Wood generates Fire, these two phases form one family, both embodying Yang containing Yin qualities. They are described with terms like "mysterious" (Xuan), "non-being" (Wu), and "subtle" (Miao), as they possess Wood and Fire but lack Metal and Water.

The West corresponds to Metal (Jin), represented by the number four and symbolized by the White Tiger (Baihu), signifying lead (symbolizing the original essence, Yuanjing). The North corresponds to Water (Shui), represented by the number one and symbolized by the Black Tortoise (Xuanwu). Since Metal generates Water, these two phases form another family, embodying Yin containing Yang qualities. They are described with terms like "feminine" (Pin), "being" (You), and "aperture" (Qiao), as they possess Metal and Water but lack Wood and Fire.

The Center corresponds to Earth (Tu), represented by the numbers five and ten. Yang Earth (Wu Tu) resides in the North (Kan position), while Yin Earth (Ji Tu) resides in the South (Li position). When these two Earth phases separate, they are counted as ten; when united, they form the character "Guī" and are counted as five. Earth occupies the central position, harmonizing and unifying the other four phases.

Wood and Fire, both belonging to Yang, form one family—the Azure Dragon representing the Zhen trigram, with mercury originating from the central palace. Metal and Water, both belonging to Yin, form another family—the White Tiger representing the Dui trigram, with lead emerging from within. When the Vermilion Bird and Black Tortoise unite, they give birth to all things—this is known as the "Three Families" theory. The Azure Dragon and Vermilion Bird govern growth and expansion, while the White Tiger and Black Tortoise govern contraction and restraint—this reflects the natural order of the world.

To transcend worldly laws (and achieve immortality), one must reverse the conventional relationships of mutual restraint among the Five Phases. The key lies in harmonizing the two Earth phases (Wu and Ji). Though Metal by nature is drawn to Wood (embodying benevolence), its inherent transformative quality makes self-union difficult. Though Wood loves Metal (submitting to righteousness), its inherent rigidity makes active union challenging. To unite them, one must rely on the mediating function of central Earth.

This scripture elucidates the core principles of Neidan (internal alchemy) cultivation. The essence of practice lies in harmonizing the Qi of Yin-Yang and the Five Phases (Wood, Fire, Earth, Metal, Water) within the body, particularly mastering the function of "true lead" (primordial Jing/essence).

The text first outlines the cultivation process: When the Earth phase of Wu (spleen Qi) generates Metal (lung Qi), one must nurture the flourishing of Metal Qi. Conversely, when the Earth phase of Ji (consciousness) is restrained by Wood (liver Qi), priority should be given to refining the self (cultivating one's nature). Without first cultivating one's nature, one cannot achieve the state of effortless movement and stillness. When this self-cultivation matures, the Wu and Ji Earth phases unite, allowing Metal and Wood Qi to interact—this is called the "dragon-tiger congress" (harmonization of Yin-Yang).

The text then describes advanced stages of practice: The dragon-tiger congress leads to "three fives returning to one" (unification of Jing, Qi, and Shen/spirit), and the "meeting of three families" (convergence of primordial spirit, Qi, and essence), ultimately crystallizing into the "infant" (embryonic form of the internal elixir). This "infant" contains the true Qi of Taiyi (primordial energy). When the Five Phases' Qi circulates individually yet merges into unified energy, the internal elixir forms, culminating in the realization of authentic beinghood.

Subsequent passages, through annotations by various perfected beings, critique erroneous cultivation methods:

• Abandoning marital relations disrupts Yin-Yang balance rather than leading to enlightenment
• Grain avoidance practices are misguided and may cause starvation
• Herbal and mineral elixirs represent attachment to material forms
• Breathing techniques and visualizations—being acquired, intentional methods—fundamentally deviate from the Golden Elixir's essence

Perfected beings like Zhang Boduan (Purple Yang Zhenren) and Lu Xixing (Master Ziye) emphasize that Dao cultivation must follow natural principles, not force artificial efforts through acquired consciousness. The authentic Golden Elixir path consists of apprehending primordial energy (true lead controlling true mercury), not clinging to external forms. The Dao's substance is inherently Wuwei (non-action)—any artificial contrivance contradicts the fundamental nature of alchemical cultivation.

Master Ziyang (a key figure in Daoist Neidan/internal alchemy) expounds in Wuzhen Pian (Awakening to Reality): The crux of refining the Golden Elixir (Jindan) lies in "true lead" (primordial Qi), which originates from the "Spiritual Father" (original spirit/Yuanshen) and "Sacred Mother" (original essence/Yuanjing). Ordinary physical bodies are formed through the union of parental essence and blood, while the path to immortality follows a similar principle—except it requires gathering primordial essence and energy to forge true lead.

The term "spiritual" refers to a state where the mind remains serene yet responsive; "sacred" denotes the pristine condition when Yin and Yang first differentiate—like a fierce tiger that does no harm. Only by comprehending this sacred spiritual realm can one grasp the true source of lead.

Human vitality is finite, and its depletion shortens life. By conserving and nurturing it—supplemented with true lead cultivation—one naturally attains longevity and even immortality. Yet without guidance from a true master, worldly practitioners may exhaust themselves with futile methods, risking self-harm. All alchemical scriptures share the same principle: the Golden Elixir is forged by uniting the energy generated from the "Kun position" (kidney-water) with the "Qian domain" (heart-fire) for transformative fusion. This celestial secret has long been revealed, though most remain oblivious.

Three commentators elaborate:

• Master Daoguang notes that all alchemical texts point to one truth—reverse cultivation following the mutual generation of Yin-Yang, focusing on the convergence of body and mind. Ziyang unveiled the celestial mechanism, yet learners refuse to begin with self-cultivation.
• Master Ziye clarifies: By harnessing the vitality of kidney-water (Kun) to nurture the spiritual foundation in heart-fire (Qian), the sacred embryo (prototype of the Golden Elixir) takes form.
• Master Shangyang concludes: The Golden Elixir's mystery lies entirely in the interplay of lead and mercury (heart-fire and kidney-water). Without understanding this core principle, one cannot fathom the profundity of internal and external alchemy (Neidan/Waidan).

Master Ziyang's Wuzhen Pian (Awakening to Reality) reveals the profound mysteries of cultivation through the interplay of internal and external Yin-Yang. The Li trigram (representing Fire and the heart) and Kan trigram (representing Water and the kidneys) symbolize external Yin-Yang dynamics, while the "golden essence" (lung Qi) and "wooden liquid" (liver Qi) constitute the internal refined substances. Similarly, "red lead" (the true Yin within heart fire) and "black mercury" (the true Yang within kidney water) are pivotal elements in internal alchemy (Neidan).

At the core lies the Primordial Qi (Xiantian Yiqi), the cosmic foundational energy that, though inherently present within the body, must be accessed through external cultivation methods. Thus, ancient masters transmitted the esoteric principle of "relying on external counterparts for internal transformation"—as Cantongqi (The Seal of the Unity of the Three) states: "Cinnabar (heart fire) and wood essence (liver Qi) require metal energy (lung Qi) to harmonize and fuse." It further teaches that "the sun's flowing pearl (the wandering mind) tends to scatter and must be gathered and refined by golden splendor (the true Qi of the lungs)." These teachings all point to the fundamental substance known as "lead-gold" (primordial Jing).

The cultivation principle essentially reverses the natural process of procreation—where male and female energies unite to generate life—and redirects this creative force upward to the celestial palace at the crown (upper Dantian). As Zhen Yizi (Master of True Unity) explained: "The two Qi of Yin and Yang must alternate dominance like husband and wife." These alchemical secrets were compassionately disclosed by generations of immortals (Xianzhen) to guide later practitioners with utmost clarity.