《諸真內丹集要》

This passage elucidates the core principles and concrete methods of Neidan (internal alchemy), the Daoist practice of refining Jing (essence), Qi (vital energy), and Shen (spirit). The words left by Laozi at Hangu Pass describe the alchemical process of Yin-Yang union and the interaction of lead and mercury (Neidan terminology symbolizing the harmonization of Yin and Yang energies within the body).

During cultivation, practitioners must guide the essence of sun and moon (symbolizing the dual energies of Yin and Yang) from the "Jade Pool" (mouth cavity) into the "Golden Chamber" (Dantian). This energy resembles an orange-yellow pellet the size of a bullet, with a sweet taste like honey. Buddhist monks attain it through meditation, while Daoist adepts achieve transcendence through cultivation. Should one obtain this energy, it must never be lost, or physical decline will follow. This vital force enters the "Gate of Life" (Dantian region) through the three spinal passes (Weilü, Jiaji, and Yuzhen acupoints), preserving the physical form from decay.

The sun and moon represent the quintessential energies of heaven and earth—all things manifest through them. The references to "three fives before and three fives after" indicate the precise timing of firing techniques, while "five times six makes thirty" denotes the cycles of celestial circulation. The perpetual cycle of generation and dissolution mirrors the twenty-four solar terms (corresponding to the twenty-four spinal vertebrae), with all the hexagrams and line positions of the Yijing (Book of Changes) implicitly contained within. Mercury (symbolizing the original spirit) divides into two, with Yin and Yang matching to form the states of Jiji and Weiji (hexagrams symbolizing stages of cultivation). When Yin and Yang reunite like husband and wife meeting, one discovers an entire cosmos within the body.

Red lead (primordial Qi) and black tin (postnatal Jing) form the foundational materials for elixir refinement. The transformation from red to black (Qi condensing into Jing) constitutes foundational practice, while extracting essence from black and marrow from red (refining Jing into Qi) yields the true elixir. Through this method, practitioners preserve longevity and may even attain celestial immortality. When the "fire dragon" (Yang energy during internal refinement) undergoes transformation, one transcends ordinary existence. Yet cultivators must examine themselves—those obsessed with wealth and lust will find success elusive. These truths were carved at Liangshan Pass near Hangu.

Zhongli Quan's (one of the Eight Immortals) "Song of Returning the Elixir" states: One mother gives birth to two children—male and female. The male represents the root of Yin, the female the sovereign of Yang. When Yin and Yang meet, each finds its proper place. The spleen and stomach's transformation of food mirrors cultivation's return to the fertile earth. Though many study the Dao, few throughout history have truly understood. They see the true dragon (Yang energy) yet fail to recognize it; they encounter the true tiger (Yin essence) yet remain ignorant. The dragon doesn't dwell in the Eastern Sea, nor the tiger in Western lands (indicating these forces reside within, not without). Those who understand Yin and Yang share one origin grasp the mystery; those who seek externally remain blind despite having eyes. Yang gestates within Yin, while Yin is nourished within Yang. When men cultivate to pure white and women to pure red, they naturally form Daoist partnerships. As hemp seeds yield hemp and millet seeds millet (illustrating the principle of cultivating what one sows), those who don't recognize true lead (primordial Qi) labor in vain. In the indistinct and hazy, the two substances of Yin and Yang prove elusive; in the profound and obscure, the three treasures of Jing, Qi, and Shen keep intimate company.

This passage is the "Stone Bridge Song" composed by Master Zhang Ziyang (a renowned Neidan/internal alchemy practitioner of the Northern Song Dynasty), which conveys the essential techniques of Neidan cultivation through poetic form. The poem employs natural landscapes as metaphors for the alchemical process, filled with the distinctive symbolic language of Daoism.

The opening describes the practitioner’s dwelling: My home originally lay north of the stone bridge, where mountains encircle and waters converge, with ancient trees towering lush and dense. The stream beneath the bridge is so clear it mirrors Mount Kunlun (a sacred Daoist peak), and those who drink from its spring inhale its fragrant essence. The mountain where I reside is truly worthy of praise, adorned with eternal spirit flowers that never wither.

Next, two fierce beasts symbolize the crux of cultivation: In the northern caves lurks a fierce tiger (representing the body’s Yang Qi), whose roar upon emerging generates radiant clouds; in the southern depths hides a dragon (representing the body’s Yin Jing), whose ascent summons a gentle drizzle. When these two divine creatures (Yin and Yang Qi) clash, the Mysterious Pearl (the nascent form of the inner elixir) appears—an auspicious sign.

The practitioner secretly delights in this wondrous state, sipping wine in quiet intoxication, as if plucking the strings of a stringless zither (symbolizing Wuwei/non-action), its melody concealing the secrets of cultivation. This drunkenness is known to none—seemingly dazed yet subtly aligned with the Dao. Observe the marvel of cosmic creation: the sun sets in the west while the moon rises in the east; Heaven and Earth, Yin and Yang, cycle and merge in natural harmony.

Understanding the principle of the Five Phases (Wood, Fire, Earth, Metal, Water) interacting in reverse order allows swift attainment of immortality. The poem then depicts the immortal’s abode: a celestial cave-dwelling with golden roofs and jade eaves, attended by golden boys and jade maidens, where the Southern Dipper and Northern Star shine vividly, and the myriad phenomena of the universe unfold before one’s eyes.

The key to cultivation lies in: unceasingly regulating the "fire times" (the mindful control during practice) day and night, circulating Qi within the body. To grasp the true mystery of the Golden Elixir (Neidan), one must seek a true master to reveal the secret of "lead within water" (the primordial essence of the kidneys). The mutual generation of water and fire requires discerning their sequence, understanding the hierarchy of ascent, descent, sinking, and floating. When the four—lead (essence), silver (Qi), cinnabar (spirit), and mercury (innate nature)—merge, firmness and softness must balance without deviation.

Contentment and return to one’s true nature bring joy akin to a kingdom celebrating peace. This song is worthy of study by fellow seekers; later disciples must realize that cultivation emphasizes "inner visualization" (cunxiang) and "Qi circulation" (xingqi), which are present in daily life. Even if predecessors practiced fifty years earlier, without grasping this root, their efforts are in vain.

This art is infinitely profound—those who master it first dispel illness, then prolong life, refining the mortal form through the tempering of fire times. The text admonishes seekers to examine themselves and avoid being misled by minor heterodox methods. Those who merely intimidate others are secretly decaying within. It encourages later students to advance courageously, for the wondrous Dao lies within themselves—no need to traverse distant mountains and rivers. Do not delay or indulge in comfort; instead, hasten to seek a true master and attain the profound teaching. If one does not diligently cultivate in this life, regret after death will be too late.

This scripture expounds the core principles of Daoist Neidan (internal alchemy) practice, emphasizing that cultivating the mind and refining one's nature holds greater importance than merely pursuing physical immortality.

The first section, Ma Ziran's Jinshi Gao, states: Human life knows no greater matter than birth and death. Those who betray their heart for Dao cultivation will sink into the Three Wretched Realms (hell, hungry ghosts, and beasts) after death. The crimson sun east of the ocean, the green mountains turning to dust through ages—a hundred-year lifespan amounts to merely thirty-six thousand days, with countless beings cycling through birth and death daily. The Ninefold Golden Elixir isn't forged from ordinary metals; without divine transmission, it remains impossible to discover. To comprehend the true immortal secret of mutual generation between mother and child, one must first learn to refine the heart before refining medicines. Why bother smelting elixirs to preserve youthful looks? True practice resides neither in bustling markets nor silent mountain forests. To seek the medicine of immortality, "maintaining no-mind toward phenomena" constitutes the Great Return Elixir (ultimate realization). While swiftly nourishing the Dantian (lower abdominal energy center) and primordial Shen (spirit) is essential, accumulating hidden virtue by aiding the people matters more. If not in this lifetime, when shall we cultivate? Those desiring longevity must tame their hearts, clinging neither to past nor future. Simply unite Shen and Qi in tranquil stillness—why worry about failing to attain the Daoist path?

Lü Dongbin's (Pure Yang Lü Zhenren) Xuanpin Ge explains: The Mysterious Feminine (Xuanpin, referring to the Dantian or the union of Yin-Yang) is called the Golden Mother, containing primordial true Qi. Like divine water in the Hua Pool (vital essence), it forms heaven-earth's foundation—refining and ingesting it brings immortality. Since ancient times, no immortal attained the Dao except through establishing foundations in the Mysterious Feminine. Yet few truly recognize it, vainly searching among kidneys and heart. Authentic Xuanpin resembles that spark of spiritual clarity between an infant's kidneys at birth. Cultivating it inversely forms the Elixir Mother (Neidan's source), while following its natural course creates human form. Practice must begin when Yang energy first stirs, obtaining the True Singular Qi from emptiness—a single two-hour session can crystallize the elixir, whereas empty waiting for nine or three years proves futile. Genuine Xuanpin dwells neither in heart nor kidneys, but traces back to life's original breath of Qi.

The Great Elixir Song employs symbolic imagery for Neidan practice: The Three Pure Ones' palace (upper Dantian) hides atop Mount Kunlun, where purple mists float amid solar-lunar radiance. Within the body, jade nectar (saliva) surges while spiritual energy flows like springwater through meridian towers. The Azure Dragon (liver Qi) rides fire, the White Tiger (lung Qi) leaps across waves, as lead and mercury (Yin-Yang energies) intertwine. The Yang from Kan (kidneys) must unite with Yin from Li (heart), harmonized by the Yellow Matron (spleen intention), ultimately forging the Great Elixir within the golden cauldron (Dantian).

This scripture elucidates the essential teachings of Daoist Neidan (internal alchemy) cultivation, presented in several sections:

The opening passage depicts the visionary phenomena during Neidan practice: A lotus-bearing maiden (symbolizing yang energy) holds up the sun on the left, while a moon-crowned general (representing yin energy) guards the western direction. A black turtle (signifying kidney water) lies concealed beneath the alchemical furnace, and a crimson vermilion bird (embodying heart fire) perches before an ornate pavilion. When the practitioner's mind becomes perfectly clear, their original Shen (spirit) manifests visibly. After completing three celestial cycles of cultivation, one may ascend riding a cloud chariot.

The Song of Nature and Life emphasizes dual cultivation: Focusing solely on the Golden Elixir while neglecting heart-mind cultivation is a grave error, just as pursuing only mental refinement without alchemical practice cannot achieve transcendence. This would be like a mirror without its reflective surface—one must simultaneously grasp the fundamental principles of Yin-Yang. When dual cultivation reaches its profoundest state, it resembles steering a dharma vessel through ocean depths to subdue the dragon, revealing the authentic attainment beyond mere theory.

Immortal Li's Ode on the Golden Elixir details the principles of the Great Dao: The Dao itself is formless, yet the Golden Elixir emerges spontaneously. Practitioners must capture the "dragon and tiger" (lead and mercury) within the furnace, securing the energies of the Five Phases. Ancient seekers of longevity emulated heaven and earth's eternal nature, gathering metallic qi (Geng-Xin) from the west and wood essence (Jia-Yi) from the east. Through precise fire regulation, they facilitated the harmonious interaction of Yin-Yang. Like the sun and moon's revolutions or stars following their celestial paths, lead and mercury mutually control each other while Yin and Yang mutually generate—form emerging from formlessness. Those who comprehend this mystery can "steal creation's work"; consuming the Elixir reverses aging.

The conclusion laments how worldly people squander their innate treasures—discarding the precious "white snow" (original spirit) and "yellow sprouts" (primordial qi), terms representing the foundational Jing (essence), Qi, and Shen of Neidan practice. This metaphor reveals how ordinary beings fail to cherish these vital elements of cultivation.

This passage primarily discusses two aspects: the essential principles of cultivating the true Dao, and the spiritual journey and insights of Tianlaizi (a Daoist adept).

The first part observes how human appearances inevitably age, and how worldly riches and fame are ultimately illusory. Some seek longevity through refining cinnabar, ingesting pine needles and morning mist, or practicing grain avoidance (bigu), but such methods are as futile as climbing a tree to catch fish or drilling ice to make fire. What truly matters is understanding that the body serves as the abode of Qi (vital energy), which in turn houses the Shen (spirit). By nurturing true Qi with true Qi, the spirit remains undispersed; by replenishing true Jing (essence) with true Jing, the physical form maintains vitality. Through such cultivation, one can restore flesh to bare bones and revive withered skeletons, attaining the longevity of legendary immortals like Chisongzi and Pengzu.

The second part presents Tianlaizi's personal account. Originally a scholar living in quiet leisure, he received authentic teachings from a true master due to his predestined immortal affinity from past lives. This profound yet simple method involves cultivating the "primordial Qi of pre-heaven" (the most fundamental life energy). He references important alchemical classics like the Cantongqi (by Wei Boyang of the Eastern Han) and Wuzhenpian (by Zhang Boduan, the Purple Yang Perfected Being), noting how these texts contain the profound principles of the Golden Elixir (Jindan) path. Reflecting on life's brevity, he urges people to embark on proper cultivation early, warning against misguided practices. The passage concludes with the transmission lineage of Zhang Boduan and his lamentations about worldly illusions, emphasizing the need to rediscover one's original true nature and transcend the constraints of the Five Phases (Wuxing).

These teachings encapsulate the core philosophy of Neidan (internal alchemy): achieving longevity through refining Jing, Qi, and Shen, while stressing the importance of authentic transmission and avoiding the pitfalls of external alchemy (Waidan) and other heterodox methods.

This guidance on Neidan (internal alchemy) practice can be understood in plain terms:

Seek the foundation of cultivation early—don't wait until your primordial Qi (represented by the alchemical terms "lead and mercury" symbolizing Jing-essence and vital energy) declines. Time passes like falling petals and flowing water; when aging comes, it will be too late. True practice isn't about rigidly observing precepts or merely reading scriptures—the key lies in dissolving discriminatory thoughts, viewing all things equally while maintaining a tolerant and forbearing mindset. Let spittle dry on your face without wiping it away; when wronged, refrain from retaliation. Such attitude transforms misfortune into blessing.

A Dao cultivator should be steadfast as pure gold, unmoved by wealth, poverty, fortune, or calamity. Sitting meditation is fundamental, but empty contemplation without substance is like drawing cakes to stave off hunger—it must be paired with practical arrangements in the "alchemical chamber" (practice space). The site must gather and contain wind and Qi ("excellent earth" refers to geomantic suitability), otherwise Jing-essence and Qi cannot coalesce. Practice requires three like-minded companions to support each other, and the accumulation of hidden virtue (Yinde) is necessary to receive true transmission ("Dan head" refers to the critical moment of practice).

When receiving transmission from an enlightened master, avoid publicity. Harmonious family life ("complete household") nourishes the foundation of practice. Practitioners needn't deliberately embrace poverty, but excessive worry about livelihood hinders awakening. Upon achieving accomplishment, one becomes at home anywhere in the world ("traveling kitchen" refers to the Daoist adept's ability to sustain themselves without material provisions).

It particularly emphasizes that early-stage practitioners needn't renounce household life—normal sustenance is sufficient, as excessive reclusion is discouraged. Only after refining the Golden Elixir (Jindan) should one wander famous mountains and grotto heavens. Avoid indulgence in wine, sex, wealth, and emotional attachments—yet advanced practitioners can transform desires: wine becomes ambrosia (refined energy), sensual love turns into serene meditation joy ("Kasyapa" represents meditative absorption), and wealth-seeking serves only the Dao. The crux lies in transcending attachments rather than formal prohibitions.

This passage on Neidan (internal alchemy) cultivation can be understood in modern terms as follows:

Practitioners do not pursue worldly beauty or talents, but focus on nurturing the Yin-Yang energies within their bodies (the "infant" refers to the primordial Jing from the kidneys, while the "maiden" represents the primordial Shen from the heart). During prolonged meditation for alchemical refinement, cultivators concentrate on their internal Qi dynamics rather than chasing dominance like the warlord Xiang Yu. The allusions to "slaying the flood dragon in the Eastern Sea" and "executing the tiger at Western Peak" metaphorically describe subduing the restless vital essences within.

The story of Guanyin's (Avalokitesvara) dragon maiden offering pearls symbolizes the mystical experience during Yin-Yang convergence. The imagery of Zhenwu the Perfect Warrior (a Daoist deity) represents the harmonious interaction of water and fire, with the entwined turtle-and-snake motif signifying Yin-Yang union. The roots of human nature (Xing) and vital life (Ming) are fundamentally unified—when separated they manifest as Yin-Yang, when combined they form the Golden Elixir (Jindan, the ultimate achievement in Neidan), ultimately returning to primordial Qi.

When practitioners gather the essences of sun and moon (Li-Kan representing heart-kidneys; the southwest direction symbolizing the Huangting energy center in alchemy), the refinement process in the "cauldron and furnace" (referring to the Dantian) produces energy manifestations resembling jade-green clouds and rosy mists. The movements of the "golden crow" (solar essence) and "jade rabbit" (lunar essence) may appear chaotic, but at specific moments (the "two crescents" indicating Yin-Yang balance) they coalesce into the Great Elixir.

The Yang spirit (Hun) and Yin spirit (Po) are interdependent. To locate them requires understanding the positions of Qian-Kun (heaven-earth) and regulating Kan-Li (water-fire). The "true earth" (genuine intention) within the "Wuji Gate" (central spleen-earth) is crucial, while the "mysterious feminine" (Xuanpin, the site of Yin-Yang interaction) serves as the foundation. Lead and mercury (alchemical reagents) are essentially the roots of Xing-Ming, hidden within our primordial heart-nature.

The passage concludes with allusions to historical proofs of cultivation success: Xu Jingyang (a Jin dynasty Daoist) ascending to immortality with his entire family, and Lü Dongbin (one of the Eight Immortals) enlightening mortals. Tianlaizi's "White Tiger Song" employs metaphorical language: "To catch the moon in water" (collecting medicinal energies) first requires "taming the southern mountain clouds" (gathering scattered consciousness). Understanding this principle leads to meeting the Primordial Lord (Yuanshen, the original spirit). Poetic images like "the moon setting while crows fly" or "riding an ox backward" all secretly indicate the inverted Yin-Yang process in alchemical firing times. The gate of Xuanpin remains ever-open, while the aperture at the center of the spiritual platform (heart) needs no forced guarding—it operates as naturally as the sun and moon's movements. The true foundation of practice lies in applying the "lead" (primordial Jing).

This Neidan (internal alchemy) scripture employs poetic language to convey the essential techniques of Daoist elixir refinement. The radiance within the cauldron illuminates rivers and mountains like swirling snowflakes, metaphorically depicting the transformation of internal energies during alchemical practice. After attending the banquet at the Jasper Pool (celestial realm), the practitioner "steals" a蟠桃 (peach of immortality symbolizing the Golden Elixir), representing the attainment of longevity treasures through cultivation.

When gathering medicinal ingredients (collecting Jing and Qi), one must observe the moon's movement (symbolizing yin essence within the body); refining the elixir requires understanding the "gold within water" (the true yang energy of the kidneys). Without the Geng metal energy (yang quality) in the moon or the nourishing true water for the gold in water, even possessing true lead (primordial Qi) proves futile. Like planting seeds in the valley of immortality (Dantian), flowers bloom spontaneously on rootless trees, bearing a perfectly natural fruit (Golden Elixir) that shines like fire when swallowed into the energy center.

"Seventy years is a rare lifespan" – when the hexagram Qi (vital energy) nears exhaustion, reversal becomes difficult. Without timely cultivation, when impermanence (death) arrives, regret comes too late. Regardless of wealth or poverty, spiritual practice remains fundamental. A man's life wasted if not pursuing the immortal path – what a squandered existence!

The Mysterious Heavenly Edict of the Dao Ancestor (Laozi) clearly states: the union of dragon and tiger (heart-fire and kidney-water) constitutes Complete Perfection (Quanzhen). Who would have guessed that within a green mountain's dream lies the secret of eternal spring throughout the six directions? The majestic Dao of Heaven remains fundamentally dispassionate – the differentiation of the single Qi gives birth to all things. Sharing origin with different names is Dao's root principle; different names returning to the same source reveals the Golden Elixir's true meaning.

Atop the white jade city (crown of the head), the jade nectar (saliva) circulates; within the golden cauldron (Dantian), the golden lotus (elixir) is nurtured. With sufficient firing time, the elixir forms easily – only after ten months (refinement cycle) of flying frost (internal purification) does the medicine solidify. The mountain tiger's roar (lung Qi activation) generates wind, while the ocean dragon's cry (kidney Qi activation) stirs waves. When the dragon-tiger battle subsides in calm waters, the "infant" (Golden Elixir) is born.

The Azure Dragon (liver Qi) strides through fire, the Vermilion Bird (heart Qi) takes flight; the Black Tortoise (kidney Qi) devours the White Tiger (lung Qi) when hungry. The interplay of the Five Phases (Wood, Fire, Earth, Metal, Water) is regulated by the central Earth (spleen Qi), while the firing process requires the harmonious interaction of Bing fire (heart fire) and Ren water (kidney water). Eight ounces of true mercury (spiritual Shen) paired with eight ounces of true lead (primordial Qi) – like the moon at first quarter (yin-yang balance), perfect for medicinal gathering. Yet avoid collecting at the beginning of the midnight hour (initial yang emergence) or during the full moon (excessive yang).

What the eye doesn't see isn't necessarily blindness; what the ear doesn't hear doesn't signify deafness. True wisdom lies in perceiving the external as internal, hearing by not hearing. When the Jade Rabbit (yin essence) sinks eastward, heat paradoxically arises; when the Golden Crow (yang energy) emerges westward, coolness is born. Comprehend this mystery of inverted yin-yang – no need to contend with others.

Through repeated inversion emerges the nameless, parentless "infant." Do you know this infant's true identity? It's precisely the primordial undifferentiated Qi before heaven and earth separated. Marvelous instruments bear miraculous fruit, containing all phenomena aligned with celestial mechanisms – stars, sun and moon revolve accordingly, unknowingly inverting heaven and earth.

Those of superior De (virtue) achieve through Wuwei (non-action); those of inferior De attain through deliberate effort. To dwell in superior De through Dao-realization, one must first master the work of inferior De.

The core of Neidan (internal alchemy) practice lies in recognizing the "true lead and true mercury" (technical terms referring to the essential Yin-Yang energies within the human body), rather than blindly pursuing superficial techniques like breath retention or qi circulation. Many mistakenly believe immortality can be achieved through breathing exercises alone, only to exhaust themselves physically and spiritually without results. The true Dao manifests in crystallizing the Golden Elixir (the supreme accomplishment of internal alchemy) – a single perfected elixir can extend one's lifespan for millennia.

Key insights from the text:

The Golden Elixir isn't hidden in distant mountains or deep waters but resides within the human body, though most fail to recognize it. Proper cultivation must occur during the zi hour (11pm-1am) and wu hour (11am-1pm), the transitional periods of Yin-Yang exchange. The text criticizes practices focused solely on breath control as futile, emphasizing the necessity of Yin-Yang harmonization. A vivid metaphor describes this process as "one child embraced by two parents," symbolizing the union of complementary energies within.

Authentic practice requires mastery of the body's essential substances (true lead and mercury), achieved through methods poetically described as "catching the Azure Dragon with the left hand and seizing the White Tiger with the right" – representing the regulation of internal Yin-Yang forces. When these energies merge completely, the Golden Elixir forms. The appearance of a sweet taste in the mouth serves as tangible confirmation of successful cultivation.

The author particularly warns against being distracted by flashy techniques that obscure the fundamental path of elixir refinement. True Buddhist and Daoist methods ultimately converge on the same principle: mastering the essential art of Yin-Yang harmonization.

The Queen Mother of the West (Xiwangmu, the foremost female immortal in Daoism) transmitted this cultivation口诀 (oral formula): If one indulges incessantly in food and drink, the body cannot become light; if obsessed with sensual pleasures, the spirit cannot become clear; if thoughts remain unceasing, the mind cannot attain peace. Without inner peace, the primordial spirit (Shen) cannot manifest; without the manifestation of Shen, the path of Dao cannot be accomplished. The essential subtlety lies not in superficial practices like gazing at stars or bowing to the moon, nor in deliberately exhausting the body through asceticism. What is truly precious is maintaining a mind clear as still water, unentangled by worldly affairs—only then can one achieve the immortal path and attain longevity. Additionally, it emphasizes eliminating distracting thoughts, ceasing deluded thinking, preserving mental purity, and focusing on "guarding the One" (a core Daoist practice of concentrating on the primordial origin).

The Supreme Inner Observation True Formula states: The true essence of life is "appearing alive yet not clinging to life." Ordinary people assume that being alive means having mental activity, which manifests in three forms: recollecting the past is called "reflection" (si), worrying about the future is called "anticipation" (xiang), and chasing present circumstances is called "pursuit" (zhu). These three mental activities ceaselessly deplete the spirit (Shen) and damage the vital energy (Qi), causing the loss of one's innate true awareness and obscuring the original Dao-nature, leading to endless cycles of rebirth. Since ancient times, those seeking liberation must realize their original face before their parents conceived them—neither mind nor thought, reaching a state where self and objects are both forgotten, naturally merging with Dao. Hence, "living without clinging to life" is the fundamental truth.

Regarding the cultivation function of "appearing extinguished yet not truly annihilated": "Extinction" refers to a state where desires do not arise, worldly ties are severed, and both mind and thoughts are forgotten; "non-extinction" means the constant presence of one's true nature (innate essence). True nature is the functioning manifestation of Dao, while Dao is the substance of true nature. Once the relationship between substance and function is clarified, one will not be lost when encountering external phenomena, remaining at ease everywhere. When true nature manifests, deluded thoughts naturally vanish. Thus, "extinction without clinging to extinction" is the wondrous function of cultivation.

Only through dual cultivation of substance and function can one realize the "true constancy" (eternal truth). Attaining true constancy means maintaining this state daily without interruption. A realized Daoist (Zhenren) naturally has no dreams because they are perpetually united with Dao—not even dreams arise.

In cultivation, one must understand: The preceding thought is like a passing guest, and mental activity is like a visiting traveler—there is no need to deliberately engage it, just let it pass naturally. The subsequent thought is the host; one must learn to observe and tame thoughts. When thoughts arise, do not cling to them—it is like following a path home, where there is no fixed track. The Scripture of Clarity and Stillness states: Observe the mind inwardly and find it has no substance; observe the form outwardly and see it is unreal; observe all things distantly and recognize their illusory nature. Penetrating these three, one perceives only emptiness—neither matter nor form.

This passage elucidates the essential method of regulating the mind and stilling thoughts in Daoist Neidan (internal alchemy) practice. During cultivation, the preceding thought should be like waves arising without wind, while the subsequent thought should resemble clear water reflecting in a mirror, allowing distracting thoughts to settle like calm water. The key lies in cleansing the impurities of the heart and ceasing deluded thoughts—yet stilling thoughts does not mean forceful suppression, but maintaining a state of awakened awareness.

Holding fast to the original mind (Shouyi, "guarding the One") is like preserving the pristine state of initial purity, attaining the realm of "grasping the meaning while forgetting the words." What needs to be eliminated are restless thoughts, while maintaining awareness without extinguishing the illuminating original mind. This state of unextinguished illuminating awareness is precisely the ability to remain desireless amidst desires and transcend worldly dust while dwelling in the mundane.

The practitioner's body and mind should resemble the Great Void (Taixu)—invisible to the eye, inaudible to the ear, transcending all distinctions. Simply concentrate on the empty, luminous mind, clinging neither internally nor externally. During inner contemplation, one discovers the mind inherently lacks substantial form. When thoughts arise, dissolve them with illuminating awareness, like passing through a field of flowers without a single petal clinging.

Do not rigidly adhere to any method; return to the natural state prior to one's parents' conception. Let the mind abide unmoving—internally without arising thoughts, externally without grasping. If one drowns in empty stillness without illuminating awareness, one falls into inert emptiness; if one follows external objects and loses stillness, one becomes dragged by circumstances. True skill lies in forgetting both movement and stillness, even letting go of the concept of "forgetting."

When both stillness (ji) and illumination (zhao) are simultaneously present, one merges with the Great Dao. At this stage, the spirit becomes lucid and bright, genuine Qi fills the body, steaming through the meridians in ceaseless circulation. A higher realm is the dual forgetting of stillness and illumination—no longer clinging to the practitioner or the practice itself, like the transcendent state where both shepherd and ox disappear.

Ultimately, one attains the purity of Wuwei (non-action) with refreshing breezes filling the chamber, returning to the primordial source. True longevity isn't physical immortality, but severing all attachments until the mind resembles dead ashes and withered wood, with the nature (original spirit) abiding and life (original Qi) stabilized. This "constant life" stems from nourishment by Yang Qi (true vital energy), while "constant transformation" arises from refining the essence of the Five Grains. When Yin and Yang energies perpetually interact harmoniously—heart fire descending and kidney water ascending—the balanced Qi circulates throughout the body. This is the genuine state of ceaseless transformation at every moment.

This scripture elucidates the core principles of Daoist Neidan (internal alchemy) cultivation, divided into several key sections:

The text first outlines the three stages of Neidan practice: Through sustained observation of internal visions (neijing), practitioners transform refined substances into primordial Qi (vital energy), then refine this Qi into Shen (spirit), ultimately uniting the spirit with the Dao. The scripture states that those who master this process attain sagehood.

The Mysterious Origin口诀 (oral formula) employs lead and mercury (symbolizing yin and yang energies within the body) as alchemical metaphors: Black lead represents yin energy, while red mercury embodies yang energy. Authentic cultivation proceeds from yang entering yin (red entering black), extracting essence from yin and vital force from yang. When these yin-yang "medicinals" combine harmoniously, yang entering yin ensures longevity, while yin entering yang enables transcendence. Here lead symbolizes the sovereign energy (ruler) and mercury the subordinate energy (minister) – their genuine union is essential for success.

The Cauldron Vessel歌 (song) details the alchemical "furnace" (representing the human body): The cauldron's mouth measures three and a half inches in diameter with two-inch thick edges, standing two feet tall with three engraved lines on its belly. During practice, yin energy resides above while yang energy settles below – initial practice employs "martial fire" (intense concentration), transitioning to "civil fire" (gentle attention). The complete cycle requires seventy days of meticulous regulation. When yin-fire (cultivation energy) and "yellow sprouts" (embryonic elixir) form, the energy circulates without external leakage, gradually nurturing pure yang nature before returning to its origin.

The Golden Elixir火候 (fire timing)秘诀 employs astronomical metaphors for energy regulation: The sun and moon's movements symbolize yin-yang transformations, with "three fives before and after" referencing lunar phases, while "five-six thirty" corresponds to seasonal cycles. The twenty-four solar terms interact dynamically, with all cosmic changes reflected in Yao象 (hexagram transformations). Mercury (cultivation energy) divides into yin and yang qi – through their harmonious interaction, a microcosm ultimately forms within the body.

The immortal Lü Dongbin (Pure Yang Zhenren) concludes: These twelve口诀 perfectly encapsulate the essence of the Daode Jing's five thousand words. Humanity's primordial nature constitutes the root of Shen, governs the vitality of life, originates from the Mingmen (gate of life), and belongs to the formless supreme existence.

The essence (Jing) and vital energy (Qi) of humans form the foundational energy that sustains life, while the spirit (Shen) is the fundamental source of one's innate nature and life force. This luminous true nature is often obscured by deluded thoughts, and the pure life energy is frequently driven astray by bodily desires. If one can preserve the body to stabilize the foundation of life and clarify the mind to make one's innate nature empty and luminous, then life energy without spiritual awareness cannot endure, nor can spiritual awareness persist if detached from life force—nature and life share the same origin, only becoming divided into two aspects due to post-heaven conditioning.

Today, many Daoist practitioners cling to one extreme. To attain the supreme state of Complete Perfection (Quanzhen), the key lies in the dual cultivation of nature and life (Xingming Shuangxiu). To achieve their harmonious fusion, one must maintain a clear and tranquil mind, free from distracting thoughts. When the mind is truly serene, all cultivation methods naturally return to their root. The reason people fail to preserve their nature and life or comprehend the Dao is because their spirit is pulled by external distractions, their innate nature is distorted by desires, and they deplete their primordial energy (Yuanqi) through indulgence in sensory pleasures. Those who escape these two pitfalls yet cling to minor techniques—whether fixating on physical cultivation methods or blindly believing in misguided practices—even if they borrow terms like the "Golden Elixir" (Jindan) or "medicinal substances," or play with esoteric phrases like "extraction, replenishment, gathering, and circulation" (Neidan terminology for refining Qi and Jing), are ultimately deluding themselves.

Only those who truly understand that the Golden Elixir is formless and nameless, that the "medicinal substances" defy description, that the "firing process" (Huohou) does not follow fixed hours, and that refinement occurs naturally through non-action (Wuwei), can avoid attachment to any method or extreme. With a mind as transparent as an infant's and spiritual light illuminating all directions, one steps onto the path of natural cultivation, enters the gate of the Dao, and comprehends the truth of "acting through non-action"—this is the highest form of practice. Focusing solely on nurturing life without cultivating one's nature is like becoming a mountain spirit; comprehending one's nature without refining life force is akin to a ghost in the shadows. Only by perfecting both can one become a true immortal of virtue and power (De).

The Golden Elixir Reversion Song reveals: When the celestial blossoms of the Golden Elixir (Jinye Huandan, the highest stage of Neidan) circulate throughout the body, the practitioner ascends to the heavens. The two energies of Yin and Yang (represented by red and yellow substances) merge instantaneously, like the separation of originally mixed male and female pearls. At this stage, one can transform at will, commanding the divine spirits within (the Jade Maidens and Spiritual Beings) to traverse the void in harmony with the Dao. The refined essence condenses as pure as frost and snow, rising and falling in accordance with natural rhythms. Only with reverent awe can one resonate with this state.

For those who seek to refine their true nature, cultivate the Dao, refine their form, condense Qi into spirit, and pursue eternal realms, the foremost practice is entering stillness. Innate nature stabilizes in stillness, the primordial spirit (Yuanshen) transforms in stillness, and primordial Qi grows in stillness. In stillness, one turns inward in contemplation, free from distracting thoughts, idle speech, or unnecessary movement. At its pinnacle, one perceives the "colorless color"—the primordial true Qi (Xiantian Zhenyi Zhi Qi). This is the most essential key to cultivation.

This scripture primarily elucidates the stages of verification and essential precautions in Neidan (internal alchemy) practice, divided into three phases: preparatory cultivation, secluded meditation, and experiential validation.

Before cultivation, one must prepare both body and mind: First, observe a twenty-five-day purification retreat involving ritual bathing and fasting to attain physical purity and mental serenity, ensuring the harmonious equilibrium of one's Hun (ethereal soul) and Po (corporeal soul) before commencing closed-door practice. Upon entering the meditation chamber, practitioners may encounter various visionary trials—such as visions of alchemical serpents entering the heart, the descent of the Queen Mother of the West (Xiwangmu), or manifestations of the Dao-body—all being tests administered by the internal deities. At such moments, one must maintain composure: neither respond in panic nor fear inadvertent offense. By stabilizing the heart-mind with tranquil awareness, these apparitions will naturally dissipate.

The scripture meticulously outlines the cyclical testing periods during cultivation: twenty-five days, forty-five days, up to one hundred and eighty days, with each stage presenting divine examinations. If one preserves unshaken mindfulness, these trials will cause no harm. Successfully passing all tests enables practitioners to perceive their internal organs with luminous clarity after 180 days, eradicate all ailments after 280 days, witness even scars vanishing after one year, and after a thousand days attain the state of "form and spirit perfected in wondrous unity," merging with the sages.

The five verified stages of Golden Elixir (Jindan) cultivation:

The first stage requires a hundred-day foundation-establishing period. In the meditation chamber, maintain bodily and mental stillness—externally unattached to worldly phenomena, internally free of discursive thoughts—rendering body and mind like "withered wood and cold ashes," severing all external ties to unite with emptiness. After three to five days of such practice, one naturally attains serene heart-energy (Xinqi) brimming with joy, manifesting humility and gentleness in interactions. Ancient masters called this the "five-day micro-cycle" of cultivation.

The second stage brings the sudden sensation of heart-fire descending and kidney-water ascending, with the five viscera generating nourishing fluids and all meridians becoming unobstructed. When heart-channel energy surges upward, one perceives extraordinary fragrances and experiences sweet saliva spontaneously arising in the mouth—at this stage, food and sleep become naturally unnecessary.

The third stage involves the intercourse of Kan (kidney) and Li (heart), with Jing (essence) and Qi flowing counter-directionally. Here, all bodily orifices open, and Qi-blood circulates freely through limbs and bones.

The fourth stage manifests penetrative vision—perceiving darkness as daylight, seeing through walls, foreseeing events, beholding celestial paradises above and underworld realms below—all being manifestations of spiritual illumination.

The fifth stage occurs when nighttime Dantian (energy center) Qi activation connects anteriorly to the central gastric cavity (Zhongwan point) and posteriorly to the "secret gate" (coccyx), with radiant light emerging above the crown—this signals the unimpeded circulation of genuine Qi.

When cultivating Neidan (internal alchemy, the Daoist practice of refining Jing, Qi, and Shen) reaches a certain stage, the body manifests various extraordinary reactions. For instance, a red glow may appear between the eyebrows, or the eyes may shine with vibrant light—these are normal manifestations of the elixir's efficacy and need not cause alarm.

At times, practitioners may suddenly experience heightened emotions, dancing about while spontaneously composing poetry. This is actually caused by the "Three Corpses Worms" (in Daoist belief, three malevolent spirits residing in the human body) stirring within. If left unchecked, all previous cultivation achievements may be lost. Alternating between joy and sorrow, or engaging in lofty discussions about Daoist mysteries with anyone encountered, are also signs of the Three Corpses deluding the mind.

Even if all the meridians have become unobstructed, if the turbid energy of the Five Grains (ordinary food) remains unrefined, if Yin energy lingers, or if illnesses persist, the practitioner must solemnly vow to undergo a hundred days of rigorous cultivation to sever attachments, greed, and selfish thoughts. When right mindfulness arises, a series of detoxification reactions will occur: irregular appetite, expulsion of turbid matter through the mouth and nose, thunderous rumbling in the abdomen, discharge of silver-like impurities, and even urine containing vermilion-like substances of five colors—all these indicate the body's purification process.

If one fails to carefully guard the genuine Qi, allowing primordial energy to leak out, the body weakens and the spirit wanes. The "Three Corpses and Six Drains" (various harmful energies that disrupt cultivation) will seize the opportunity to invade, causing paranoia during meditation and nightmares during sleep. When practicing in quiet chambers, special care must be taken to avoid foul odors and overpowering fragrances, as well as raw, cold, hard, or heavily seasoned foods, which can damage the genuine Qi of the Five Organs.

When the genuine Qi of the Five Organs becomes abundant, the desire for food naturally diminishes. Though temporary fatigue and discomfort may arise, after seven days, the spirit will become radiant and the mind clear. Upon reaching the stage where "ten thousand spirits return to their positions" and genuine Qi returns to the Dantian (energy center), normal eating can gradually resume. However, one must maintain a light diet, as the newly formed genuine Qi is still vulnerable to the turbid energy of ordinary food. If sudden illness strikes, allowing pathogenic Qi to attack the heart and disrupt the Triple Burner (the three functional regions of Qi metabolism) or hinder the generation of the Five Qi, timely regulation is essential.

During Neidan (internal alchemy) practice, if one experiences reduced appetite and disrupted sleep patterns, a sour astringent taste may arise in the mouth. This occurs due to obstructed Qi circulation within the body, where blood stagnates between the heart and lungs. Occasionally, one might suddenly expel two or three bowls of purplish-black blood clots before the symptoms gradually subside.

When natural saliva spontaneously rises and is swallowed past the "Heavy Tower" (the throat), one may notice an extraordinary fragrance. This saliva cleanses the Sanjiao (three burners), the five viscera and six bowels, as well as all acupoints throughout the body, ensuring smooth Qi circulation. At this stage, the three Dantian (upper, middle, and lower energy centers) cycle continuously, making the inner body as clear as the Milky Way with pearls in motion. All ailments naturally dissolve—this is the method for repairing congenital deficiencies.

After years of cultivation reaching a certain level, even ordinary grains taste fragrant, bringing joy to the heart-mind. With Qi circulating smoothly and all meridians harmonized, one enjoys health through all seasons, naturally aligning with the rhythms of heaven and earth and the transformations of Yin-Yang. This order is as precise as the movement of the sun and moon, the alternation of day and night.

During practice, one might experience illusions such as roaring wind-like tinnitus, thunderous heart palpitations, or the sensation of flames engulfing the body. This signifies the refinement of Jing (essence) and Qi within, dispersing Yin-pathogens and eliminating the Three Corpses (malevolent spirits residing in the body according to Daoist belief). At this point, genuine Qi fills the Dantian, the spirit becomes concentrated, and one enters a state of apparent nothingness—as focused as a cat stalking a mouse or an eagle seizing a rabbit. Once this fiery Qi subsides, a refreshing coolness follows.

In the early stages of practice, reduced appetite and physical emaciation may occur, sometimes accompanied by abdominal pain near the navel, stabbing sensations in the ribs, or tearing sounds from the organs. These are signs of old ailments being stirred by the alchemical process. Licorice decoction can alleviate discomfort, but one must strictly avoid random use of other medicines.

If the Five Spirits (deities corresponding to the five viscera) feel unclear, causing chest tightness, mental haziness, or restless sleep, there is no need for alarm. Simply maintain focused concentration, and gradually foul, malodorous substances will be expelled from the body, resolving the symptoms naturally.

When cultivation reaches the stage where all meridians flow freely and countless spirits gather—when the Five Qi (energies of the five viscera) merge and return to the "Primordial Sea" (Dantian)—one enters true meditative absorption. Here, breathing no longer relies on the nose and mouth, and the pulse cannot be detected at the wrist. Maintaining this state for one hundred ke (approximately 24 hours) leads to the achievement of a Great Luo Golden Immortal.

Occasionally, the body may feel as if steamed by fire, with limbs aching as though shattered and sinews softened as if tempered in flames. This indicates the process of "shedding the mortal body and exchanging bones." After occasional profuse sweating, the discomfort passes—proof of truly transcending the ordinary and entering sagehood.

This scripture elucidates the core principles of Daoist Neidan (internal alchemy) cultivation, using metaphorical language to describe the physical and mental states achieved during practice.

The cultivator must attain the state where water and fire mutually nourish each other (indicating Yin-Yang balance) and the Qi of the Five Phases (Wood, Fire, Earth, Metal, Water) unifies, transforming the body's four elements (earth, water, fire, wind) into pure Yang without Yin. Through the advanced method of refining the form with golden liquid, both body and spirit reach a mysterious state of unity with the Dao, transcending the constraints of the Five Phases. At this stage, the primordial spirit (Yuanshen) can wander freely beyond material constraints, journeying through celestial realms.

When genuine Qi becomes abundant, the body naturally becomes pure Yang without Yin, with divine light enveloping the entire form and all meridians flowing unobstructed. At this point, Yin-demons (negative energies that disrupt cultivation) are completely eliminated—this marks the verification standard for true practitioners. Though physically in the mundane world, their hearts have already transcended to sainthood, often receiving golden texts and purple edicts (celestial appointment documents) from envoys of the immortal realms.

The key aspects of Neidan cultivation include:

• Gathering the Qi of the Five Phases into the central palace (Dantian)
• Achieving mental and physical stability, known as subduing the dragon and taming the tiger (mastering wandering thoughts)
• The dragon's hum (circulation of genuine Qi) condenses essence (Jing) and vital energy, while the tiger's roar (breath regulation) stabilizes primordial Qi—these are methods for nurturing the spiritual root
• Using the turtle and snake as metaphors for essence and Qi, the dragon and tiger as symbols of body and mind
• The unity of body and mind is called harmonizing the four manifestations (balancing Yin-Yang)
• Governing emotions with one's true nature follows the principle of metal overcoming wood
• Harnessing primordial Qi through emotional control creates the interaction of water and fire (the communion of heart and kidneys)

The cultivation stages progress from: refining essence into Qi → refining Qi into spirit → refining spirit to return to emptiness, culminating in the three blossoms gathering at the crown (unity of essence, Qi and spirit). The place where thoughts arise is called the mysterious feminine (Xuanpin, a crucial cavity in cultivation). The true nature within the heart is like mercury in cinnabar (elusive to grasp), while the primordial Qi in the body resembles gold in water (precious yet difficult to obtain).

Essential techniques include:

• Cutting off external distractions called "solidifying the foundation"
• Maintaining unwavering stillness called "nourishing the fire"
• Following natural processes called "application"
• Sincere concentration called "guarding the city"
• Overcoming scattered thoughts called "field battle"
• Purifying the heart-mind called "ablution"
• Entering meditation called "gathering"
• Drawing kidney Yang to supplement heart Yin called "extraction and replenishment"

Key locations:

• The transcendent point beyond form is called the mysterious pass (Xuanguan)
• The innate spark of spiritual light is called the true seed
• The spirit resides in the upper Dantian, Qi in the middle Dantian, and essence in the lower Dantian—collectively called the three palaces
• The cavity of returning to the root, the gate of restoring life, and the valley of emptiness are the three crucial points

Metaphorical representations:

• The body serves as the furnace and cauldron, the heart as the divine chamber, with lead and mercury (essence and Qi) as the medicinal ingredients
• The warming sensation in the upper body represents the Qi of fire essence
• The moistening quality in the lower body signifies the liquid of water Qi
• Restraining anger causes fire Qi to descend, while moderating desires makes water Qi ascend—this is called the perfect balance of water and fire (Yin-Yang harmony)
• Failure to control anger makes fire Qi flare upward, while inability to restrain desires causes water Qi to flow downward (leading to Yin-Yang imbalance)

This passage elucidates key stages and terminology of Daoist Neidan (internal alchemy) practice. Restraining desires is likened to water flowing downward, termed "Weiji" (the Hexagram of Incompletion). True lead (the Jing-essence from kidneys) is compared to an infant, while true mercury (the vital blood from heart) symbolizes a maiden. Embryonic breathing relies on the spleen's fluids, with the "Yellow Matron" serving as mediator between them. The union of emotion and innate nature mirrors marital harmony.

The primordial Shen (spirit), indestructible through kalpas, shines brighter like refined gold—this constitutes the Golden Elixir. The number nine represents metal's perfection; since emotions belong to metal, their return to original nature is called "ninefold reversion." Seven signifies fire's completion; as Shen corresponds to fire, refining spirit to return to emptiness is termed "sevenfold return."

When the mind becomes lucid, thoughts stabilize, and consciousness empties, the three treasures (Jing, Qi, Shen) coalesce like an embryo taking form. This demands vigilant protection—as dragons guard pearls or hens brood eggs—for the slightest error undoes all progress. When Yang energy consolidates into form and separates from the body, it's called "shedding the embryo"; returning to life's origin in pristine simplicity becomes "transcendence"; ultimate union with emptiness and complete awakening is termed "final realization."

Through metaphors of marriage and infancy, these teachings illustrate the coordinated interplay of vital energies. Numerical symbolism marks cultivation stages, with the entire process resembling the meticulous nurturing of new life.

From childhood I devoted myself to the Dao, leaving home at twenty to wander rivers and lakes seeking enlightened masters and fellow seekers. By fortune I received transmission from my late teacher Zhang Wuzhen, later collecting many poetic verses, alchemical scriptures, and biographies left by earlier adepts. I pored over these classics, contemplating their profound meanings while visiting fellow practitioners and wandering through sacred mountains to study cultivation records carved on stone cliffs.

In later years, Master Haiqiong resolved my confusions, and later still at the Zhu Ling Grotto-Heaven (a renowned Daoist sacred site), I met the Recluse Shuairan who gifted me cultivation poems—only then did I truly grasp Master Haiqiong's profundities. Now I understand my youthful seeking was like adding roofs upon roofs or grafting branches to branches. The roof is simply the roof, the branch simply the branch—why abandon the near to chase the distant?

Fearing these true insights might be lost, and considering future seekers may lack my dedication, I record these realizations. Those with affinity may follow these principles to deeper contemplation and diligent practice. Thus even without consciously seeking teachers, the masters' wisdom is already present within.

(Key cultivation principles):

All flesh, skin and bones in men belong to Yin; only the prenatal Qi (先天一气) constitutes true Yang. Neither the vital essences of the five viscera nor the fluids of the six bowers are true Yang—only this prenatal Qi qualifies. This isn't ordinary breathable air, nor has it any visible form. As the Wuzhen Pian states: "What can be seen isn't the real thing; the truly effective remains invisible."

This prenatal Qi existed before physical form—it's the first energy formed when parents conceive. First it generates the kidneys, then the eyes, followed by heart, liver, lungs, spleen and other organs, finally forming the nine orifices and limbs to complete human form. Residing between the kidneys, it's called the "Gate of Mysterious Feminine" (玄牝之门, the crucial intersection of Yin-Yang within the body), detailed in my teacher's Song of the Mysterious Feminine—though few in this world comprehend it.

(An everyday analogy):

When slaughtering livestock, one observes between the kidneys near the spine a membranous void where Qi pulsates with breath until the flesh cools—this manifests the prenatal Qi. In life, when blood and Qi flourish and the hun-po souls reside securely, this Qi contains the Five Phases' energy, warm as heated water. At death, like slaughtered beasts, when blood-Qi scatters, this prenatal Qi vanishes.

The human body operates on the same principle—the innate Qi within us constitutes the Golden Elixir (Jindan), the core energy of Neidan (internal alchemy) practice. Ancient masters warned that fixating on physical organs like the heart or liver, or tangible substances such as blood and bodily fluids, represents a fundamental misunderstanding of the Dao. Even methods claiming to cultivate the Shen (spirit) or ethereal components often miss the mark.

Our feet embody solar (left) and lunar (right) energies, with the Yongquan (Bubbling Spring) acupoints naturally generating the dual forces of water and fire. These energies ascend through the legs, converging at the coccyx before gathering in the kidneys: the left kidney (Kidney Hall) stores true Yang within its watery nature, while the right kidney (Essence Treasury) harbors true Yin within fiery attributes, intertwining like a tortoise and serpent. Between them lies the mysterious Xuankong cavity (the core Dantian region), where kidney energies fuse to produce golden and crimson energy streams.

This unified energy climbs along the 24 spinal vertebrae, passes through the heart region, traverses the Gaohuang acupoint (between heart and lungs), ascends to the Fengfu point (occipital region), and ultimately reaches the Niwan Palace (crown point). Like nourishing dew, it then showers downward to vitalize the senses and organs, flowing through the Chonglou (trachea), Yuque (heart center), and returning to the Jianggong (space between heart and kidneys), completing the celestial cycle. This entire process follows natural rhythms without artificial intervention.

Many modern practitioners stray from the path by ignoring the truth of "emptiness and spontaneity." Their forced techniques—controlled breathing, guided movements, or deliberate visualization—disrupt Qi-blood harmony. Consider those practicing White Lotus methods whose faces turn sallow, or those straining Qi flow who develop abdominal distension. In reality, everyone’s Qi mechanics follow identical patterns—success lies in aligning with nature. Just as tides obey lunar phases, the Big Dipper rotates with time, and women’s cycles arrive predictably, our body’s energy manifests as true fire within wood (wood’s liquid) during Yang periods and true water within metal (metal’s essence) during Yin phases.

The kidneys conceal profound mysteries: the left kidney’s Kan trigram (☵) contains Wu-earth, while the right kidney’s Li trigram (☲) holds Ji-earth. Their union forms the character "Gui" (an ancient sundial), also called "metal within water" or "knife-measure" (a unit for elixirs). Fundamentally, metal, wood, water, and fire all return to central earth nature. Thus, masters concluded: the primordial Qi’s movement through organs is ultimately the natural transformation of Five Phases energy.

This passage elucidates the natural movement of "innate Qi" (the inherent life energy present from birth) in Neidan (internal alchemy) practice. Authentic Jing (essence) and Qi flow spontaneously without forced manipulation—like a waterwheel turning, the Yellow River surging, or the natural stream at Caoxi (where Chan Patriarch Huineng taught).

Timing is crucial in cultivation: the Yang energy emerging during Zi hour (11pm-1am) is called Yang Fire, while the Yin energy at Wu hour (11am-1pm) is termed Yin Fire. Mao hour (5-7am) yields Wood essence, and You hour (5-7pm) produces Metal essence. Since Mao corresponds to Jia Wood and You to Geng Metal in the celestial stems, these are optimal hours for gathering vital energies. Zi hour contains Wu Earth, Wu hour contains Ji Earth—hence these periods govern Qi circulation.

Though dealing with the same fundamental energy, collection must follow Jia/Geng timing, while fire modulation (huohou) isn't restricted to Zi/Wu cycles. Without understanding cosmic Yin-Yang rhythms, the maturation stages of internal "herbs" (refined energies), and Water-Fire balance, practitioners will struggle. Ancient masters clarified these principles, yet later generations grew confused—either clinging to abstract "emptiness" without practical methods (resulting in failed Dantian respiration and sterile void-states), or forcing progress against natural laws, wasting vitality or inviting illness.

"Emptiness" here denotes formless potentiality, while "naturalness" refers to actionable cosmic patterns. This text specifies concrete procedures—herb gathering, fire phases—avoiding misleading metaphors. Each instruction directly addresses core mechanisms. Faithful adherence yields tangible results.

Before formal practice, schedule herb-collection periods. Daily seated meditation loosens joints and opens meridians. From the bladder to the spinal hinge (jiaji), energy rotates wheel-like—innate Qi naturally ascends through the Three Passes (coccyx, spinal hinge, jade pillow) to the Niwan (crown point), then descends via the "storied tower" (throat) to the Crimson Palace (heart center). Energy ebbs and flows rhythmically: during Jia/Geng hours when Yang peaks, simply sit quietly without forced guidance. Soon crown warmth and saliva emerge—guide this nectar down gently with inner vision, storing it in the Crimson Palace.

Within daily cycles, Jia time mirrors the waxing moon (7th-8th lunar day), Geng the waning (22nd-23rd). Zi-to-Mao constitutes the waxing phase, yielding half-pound Mercury (Shen/spirit); Wu-to-You the waning, producing eight-ounces Lead (Jing/essence). Gathering equal measures of Jia-Mercury and Geng-Lead follows the fixed ratio described in alchemical texts as "Lead and Mercury mutually attracting."

This passage explains the methods of gathering medicinal substances and alchemical refinement in Daoist Neidan (internal alchemy) practice. Several key concepts are mentioned: the Jia-Geng days (representing specific celestial stems and earthly branches denoting auspicious timings), the symbolic ingredients of Wood-Water-Metal-Lead, and the furnace-cauldron (representing specific bodily regions for cultivation).

Practitioners must gather the vital essence (Jing) and energy (Qi) produced within the body—symbolized as "golden lead"—during specific Jia-Geng hours, much like mining requires seizing the optimal moment. In the initial stages of practice, one shouldn't be concerned with duration but must accumulate energy over time to form the internal "furnace and cauldron." The true furnace resides in the lower Dantian (abdominal energy center), while the cauldron is located in the Crimson Palace (heart region), contrary to common misconceptions placing them in the spleen or the Muddy Pellet Palace at the crown of the head.

The method of gathering medicinal substances involves: guiding with intention (called the "Yellow Matron") and internal vision through focused gaze (called the "Blue Maiden") to collect essence-energy. The Qi within the body flows according to one's intention. When essence is guided into the cauldron through intention, the fire phases must be regulated. From the Zi hour (11 PM–1 AM) to the Si hour (9–11 AM)—the six two-hour periods of ascending Yang energy—one should use intention to stoke the fire (called "adding fire" or "increasing mercury"). From the Wu hour (11 AM–1 PM) to the Hai hour (9–11 PM)—the six periods of growing Yin energy—the fire naturally recedes (called "retreating fire" or "extracting lead"). These Yin-Yang transformations follow the natural numerical principles found in the Hetu and Luoshu diagrams. Practitioners need only align with this rhythm without forced effort.

The text also mentions "morning Zhun, evening Meng, daytime Gou"—using hexagrams from the Yijing (Book of Changes) to symbolize different cultivation stages: Zhun (symbolizing sprouting) in the morning, Meng (symbolizing initiation) in the evening, and Gou (symbolizing encounter) during daytime. This illustrates how practice must harmonize with celestial timings. The entire process emphasizes following natural principles, guiding with intention but never forcing outcomes.

This passage explains the natural principles governing the "fire timing" (huohou, referring to the regulation of intention and mastery of timing) in Neidan (internal alchemy) practice. The movement of Qi (vital energy) within the practitioner's body aligns with natural rhythms—just as kidney Qi flourishes during the Hai (9-11 PM) and Zi (11 PM-1 AM) hours, liver Qi during Yin-Mao (3-7 AM), heart Qi during Si-Wu (9 AM-1 PM), lung Qi during Shen-You (3-7 PM), and spleen Qi during Chen-Xu-Chou-Wei (7-9 AM, 7-9 PM, 1-3 AM, 1-3 PM). True Qi naturally flows to the corresponding organs without forced visualization.

When beginning alchemical practice, there are no special prohibitions—one starts when the time is right and stops when completion is reached. However, during formal "medicine entry" (gathering and refining Jing-Qi) and "fire application" (employing intention), one must select an auspicious day to enter a quiet chamber, sever all mundane distractions, and still the outward focus of the senses—eyes, ears, nose, and mouth—achieving inner clarity and emptiness. The slightest stray thought may cause "medicine leakage" (dissipation of vital essence). In the quiet chamber, maintain a state of semi-satiation, avoid excessive sleep, and remain ever-vigilant: gathering the "medicine" (emergence of vital essence) when it appears and applying fire timing when encountered.

Only during the Mao (second lunar) and You (eighth lunar) months should water-fire practices be suspended, as the exceptionally strong Wood and Metal Qi during these periods disrupts the water-fire balance and damages the elixir. Thus, only ten months each year are used for "fetal formation" (condensing the internal elixir). After ten months, the elixir fetus matures and must be transferred to the Muddy Pellet Palace (Niwan Gong, a cranial acupoint)—called "changing the cauldron." Subsequent practice resembles nursing an infant: no further fire timing is needed, only gentle nurturing. After three to nine years of such cultivation, the Celestial Gate (crown of the head) opens naturally, allowing the "infant body" (spiritual form transformed from the elixir) to move freely—marking the attainment of immortality.

The entire process unfolds naturally without forced striving. However, ancestral masters mention the "single-day golden elixir" phenomenon, where half a day's practice under specific conditions yields results equivalent to months or years of ordinary cultivation. The key lies in seizing the critical moments of "medicine" (Jing-Qi) emergence and fire timing application.

The critical moment in cultivating the Golden Elixir (Jindan, the core concept of Daoist Neidan practice) is often accomplished in an instant, hence termed the "instantaneous Golden Elixir." This sudden awakening cannot be forced through day and night of strenuous meditation.

Terms such as medicinal ingredients, the furnace and cauldron (symbolic tools of cultivation), firing times (timing in practice), ablutions (purification of body and mind), embryonic breathing (profound breath techniques), and the infant (manifestation of the original spirit), as well as concepts like extraction and replenishment (adjusting Yin-Yang), host and guest (the relationship between spirit and Qi), punishment and virtue (restraint and balance), floating and sinking or rising and descending (the movement of Qi), lead and mercury or water and fire (symbols of Yin-Yang), and true earth and golden essence (primordial Qi), are ultimately different expressions of the same reality. These ideas are interconnected, and their true meaning becomes clear through deep study.

Regarding the concrete methods of cultivation, the alchemical poetry and scriptures of past masters have already explained them thoroughly. The essential principle is to penetrate the origin and align with nature. Though easy to say, it is difficult to practice; though achievable, it is even harder to sustain. Why is sustaining the most challenging? Because minor techniques of heterodox paths often lack real efficacy—only the Great Dao of the Golden Elixir guarantees genuine results.

For modern practitioners, the time required to gather medicinal ingredients (collecting primordial Qi) varies by individual: roughly half a year for the young, one year for the middle-aged, and three years for the elderly. The key is to forget the physical form and maintain stillness. Upon successful gathering, the following signs will appear: sharp hearing and clear vision, the elimination of all ailments, intense heat in the kidneys like burning fire, Qi moving along the spine like a turning wheel, the crown-point (upper Dantian) feeling as if scalding water is poured over it, and sweet saliva frequently welling up in the mouth. If one remains lucid and free of distracting thoughts, divine light will manifest in the eyes after about two months, and the mind will become as clear as if endowed with wisdom.

However, one must not become complacent upon seeing these signs, lest they fall into demonic obstructions. After continuing practice for another three months without interruption, the seven orifices (eyes, ears, nose, mouth, etc.) will emit golden light, illuminating both the internal and external, with perception far surpassing ordinary people. At this stage, the "infant" formed from the original spirit has taken shape, but it must not be allowed to move freely—it must be strictly guarded, or else the elixir Qi will leak.

After the ten-month "gestation period" (a metaphor for the cultivation cycle) is complete, the infant's Qi will be fully developed, ripening naturally like a melon ready to drop from the vine. Thereafter, though the original spirit may leave the body, it must not wander beyond a few feet and must be recalled in time, or it may become lost and fail to return—even potentially reincarnating (signifying the loss of cultivation). Typically, an additional three to nine years of nurturing are required until the original spirit matures and stabilizes like a true person, at which point the great work is finally accomplished.

When one reaches their teenage years, they begin to understand the nuances of human relationships and worldly affairs, at which point they can naturally navigate social interactions. Upon attaining a certain level of cultivation, one may ascend and transform into a true immortal, yet will still face demonic obstacles and trials. When practitioners enter their meditation chamber and achieve the state of forgetting both self and external objects, various extraordinary phenomena may arise: sudden surges of wisdom, the manifestation of supernatural powers, karmic retributions from past and present lives, miraculous encounters with divine beings, and even terrifying visions of ghosts and spirits. These experiences—which may seem like opening the heavenly eye or divine possession—are actually illusions conjured by demonic obstacles. One must never mistake them for genuine realization of the Dao (the Way).

At this critical juncture, it is essential to maintain the original mind and hold fast to the stillness of the "Supreme Mystery's Oneness" (a Daoist term referring to the purest primordial Qi (vital energy)). One must firmly preserve their true nature, never mistaking seductive beauty for genuine emotion or unrestrained desires for innate character. Only by persisting in such practice can one ultimately achieve the Dao. Unfortunately, many today lack the clarity and resolve at this stage, allowing external malevolent forces to infiltrate. Not only do they fail in their cultivation, but they may even descend into madness, subsequently dismissing the teachings of immortals as illusory—a truly lamentable outcome.

Throughout my life, I have studied texts, sought out fellow practitioners, and apprenticed under masters in pursuit of the Dao. Through personal practice, I have verified these principles of cultivation. Now, I share these insights with future practitioners: those with sincere aspirations should carefully contemplate the meaning of these words, cross-reference them with the alchemical classics left by past patriarchs, and compare them with the secret scriptures of the Daoist canon. They will surely find mutual confirmation. If one cultivates according to this method, within ten months, they will form the "embryonic infant" (a Neidan (internal alchemy) term referring to the nascent form of the Shen (spirit) cultivated within the body), after which they enter the nurturing stage. Only then can one proceed to study the advanced methods in the latter half of the Wuzhen Pian (Awakening to Reality). At that point, indescribably wondrous experiences will naturally arise.

Without following this sequence, the embryonic infant cannot form within the body, and the Shen cannot gestate. Such practice is like water without a source or a tree without roots—ultimately incomplete. Even in old age, one may achieve little and ultimately fall into the cycle of unfavorable rebirths. As for the four possible outcomes of successful Neidan cultivation: the highest is ascension to the celestial realms; next is liberation through the corpse (becoming an immortal while leaving the physical body behind); then comes "seizing a dwelling" (taking over another's body for rebirth); and the lowest is rebirth through reincarnation. Both ascension and liberation through the corpse require the perfection of merit—fulfilling the Dao of Heaven and accomplishing deeds that benefit the world. If one possesses only personal cultivation without merit for aiding others, the most they can achieve is prolonged life; true transcendence remains out of reach.

This passage elucidates the essential principles and precautions for cultivating Neidan (internal alchemy, the Daoist practice of refining Jing, Qi, and Shen).

It begins by emphasizing that once the Shen (spirit) departs the body, it cannot return, and when Qi (vital energy) is severed, it cannot be revived. Superior practitioners can achieve rebirth through spirit transference, those of middling attainment may reincarnate, while inferior cultivators risk becoming wandering ghosts with no refuge. To escape the suffering of samsara, one must awaken the mind and perceive true nature to transcend life and death. The author laments the ignorance of ordinary people—though many discuss the Dao, few truly succeed—and thus records these key points as a solemn warning.

The text particularly stresses the immense value of these cultivation secrets. Those who receive them must treasure them with the reverence due to a ruler, father, or master, and share them only with destined individuals. Violating this covenant invites calamity not only upon oneself but also upon nine generations of ancestors, condemning them eternally to hell without hope of liberation.

The passage then details eight crucial stages of practice:

The first stage requires 100 days of serene cultivation in a tranquil environment, maintaining an empty and still body-mind like withered wood or cold ashes, free from distracting thoughts, allowing the innate spiritual light to manifest naturally.

In the second stage, one experiences the descent of heart-fire and the ascent of kidney-water, generating fluids in the five organs, unblocking all meridians, and producing sweet saliva in the mouth, naturally eliminating the need for food and drink.

The third stage involves the union of Kan (kidney-water) and Li (heart-fire), reversing the flow of Jing and Qi to fully open the body’s energy channels.

The fourth stage grants extraordinary perception—seeing at night as if in daylight, perceiving through walls, foreseeing the future, and even glimpsing the realms of heaven and hell.

The fifth stage fills the Dantian (lower abdominal energy center) with genuine Qi, causing red clouds to appear above the head, a radiant halo between the eyebrows, and exceptionally bright eyes.

The sixth stage demands vigilance: one may experience spontaneous bursts of wisdom, divine inspiration, or uncontrollable singing and speech—signs of the Three Corpses (malevolent spirits believed to reside in the body) causing mischief. Without caution, all previous progress may be lost.

The text concludes by noting its composition in the Zhuling Grotto-Heaven (one of Daoism’s 36 sacred grottoes) on Mount Heng during the eleventh month of 1264, under the Southern Song dynasty’s Xianchun reign.

The Collected Essentials of Internal Alchemy by the Perfected outlines several key points to observe during cultivation practice.

When one sees people alternating between joy and sorrow, or engaging in lofty discussions about the Dao upon meeting others, these are actually disturbances caused by the Three Corpse Demons (harmful spirits believed to reside within the body in Daoist thought). Even if a practitioner has already unblocked the body’s meridians, they must still make a solemn vow to heaven and devote themselves wholeheartedly to cultivation if they have not yet purified their diet, eliminated all yin energies, or dispelled illness. They must sever thoughts of greed and stinginess, dissolve the distinction between self and others, and attain selflessness and desirelessness—maintaining upright awareness, aligning inner and outer, absorbing the righteous qi of heaven and earth, and transforming yin and yang.

If a practitioner is not cautious, their essence (Jing) and vital energy (Qi) will dissipate. If their mind grows lax, delusions and deviant thoughts will arise, causing the Three Corpse Demons to fully manifest, while the six drains (the dissipations of the six senses—eyes, ears, nose, tongue, body, and mind) will disrupt the spirit. During meditation, doubts and fears will emerge; during sleep, they will startle awake easily, and all manner of adverse states will appear repeatedly.

The essential method of cultivation can be summarized as the Four Lessens: speak less, eat less, think less, and sleep less. By mastering these four, the path to immortality is not far. Cultivation is not about haste but frequently taming the "mind-monkey and thought-horse" (a metaphor for restless thoughts). Do not cling to worldly affairs; abide in one’s true nature, unmoved by external things, keeping the yang energy stable. Speaking less clarifies the spirit—nurturing qi and harmonizing the spirit (Shen) are of utmost importance. Sleeping little or not at all at night ensures the Three Corpse Demons and five ghosts (negative influences hindering cultivation) naturally vanish.

Regarding the six supernatural powers (abilities attained through advanced practice):

1. Mind-Insight Power: The mind becomes lucid and pure.

2. Spirit-Insight Power: The spiritual state becomes unobstructed.

3. Heavenly Eye Power: The ability to see what ordinary people cannot.

4. Heavenly Ear Power: The ability to hear what ordinary people cannot.

5. Past-Life Knowledge Power: The ability to know past and future events.

6. Thought-Knowing Power: The ability to discern others’ thoughts.

Practitioners must maintain unwavering focus day and night. During meditation, concentrate on regulating the breath—soft, continuous, and unbroken—preserving the original nature without confusion, serene and unmoving. This is the state of pacified mind. At times, one may perceive the entire room as bright as daylight, with the inner mind as clear as ice. Yet this is not the highest state—it is like viewing the sky through a well, seeing only a limited portion. When the Three Flowers (Jing, Qi, and Shen) gather at the crown of the head, and the Five Qi (the energies of the five organs) return to the Dantian, these are signs of progress in cultivation.

During meditation, if one suddenly feels the spirit (Shen) detaching from the body and begins to disdain the impurity of the physical form, this awakening of wisdom signifies the attainment of Mind-Insight Power. Do not retreat from stillness—whether dwelling alone in a quiet chamber or in humble surroundings, one may foresee future events as clearly as seeing a needle through a wall. This is Spirit-Insight Power. Upon reaching this stage, redouble cultivation efforts. At times, the mind may suddenly open to profound realization.

When you reach a certain level in seated meditation practice, you'll enter a state of primordial chaos where directions lose meaning. At this critical juncture, maintain awareness without panic. Within this chaos, your inner vision will suddenly open with crystalline clarity—as if holding mountains and rivers in the palm of your hand. With spirit uplifted and breath expanding boundlessly, you'll awaken the "Divine Eye" (tianyan tong, the ability to perceive all phenomena).

Persisting further in practice, you may hear celestial dialogues during meditation. Release all attachment to these sounds, lest you become trapped in illusions. If you can discern truth from falsehood, you'll attain the "Divine Ear" (tian'er tong, the capacity to hear all sounds across dimensions). Whether day or night, in deep samadhi you'll perceive karmic connections across the Three Realms—this constitutes the "Knowledge of Past Lives" (suming tong).

When the light of wisdom shines continuously, with undisturbed clarity day and night while abiding in fundamental awareness, you'll manifest the "Externalized Body" (shenwai shen, yang-spirit manifestation). Witnessing sacred realms beyond this world signals the "Mind Reading" (taxin tong) ability.

Next comes the work of refining form and Qi: conserve energy through mindful silence when cultivating Qi, and eliminate selfish desires when refining the physical form. These disciplines require unwavering commitment without halfway abandonment. After prolonged practice, the body undergoes natural purification—either expelling foul matter through skin eruptions with unpleasant odors, or discharging multicolored impurities through the intestines. Fear not these signs, for they indicate the expulsion of yin turbidity, after which you'll experience extraordinary lightness.

Like a snake shedding skin or cicada emerging from its shell, you'll ultimately achieve complete physical and spiritual transformation. Only when both body and spirit reach this mystical unity with the Dao can one truly manifest transcendent accomplishment. At this stage, eat when hungry and sleep when tired—living spontaneously before ascension. When cultivation reaches perfection, you'll tread auspicious clouds in absolute freedom, transcending all karmic bonds. Practitioners should contemplate these progressive states with deep discernment.