《修真十書鍾呂傳道集》Vol. 1

This passage comes from the opening section of The Ten Books on Cultivating Perfection: Records of Zhongli Quan and Lü Dongbin Transmitting the Dao, a Daoist classic. Through the dialogue between Zhongli Quan (one of the Eight Immortals) and Lü Dongbin, it expounds on the origin of human life and the path of spiritual cultivation.

Lü Dongbin asks: How can humans maintain health without illness, preserve youth without aging, and achieve immortality? Zhongli Quan replies: Human life originates from the union of parental Yin and Yang energies, where seminal essence and blood form the embryonic sac. After the initial stage (Taichu, the Great Beginning), it develops material foundation (Taizhi, the Great Substance), with Yin energy carrying Yang energy for growth. Over three hundred days, the fetus takes form, and the spiritual light enters the body before separating from the mother. After birth (in the Taisu stage, the Great Simplicity), Qi begins its cyclical movement of ascent and descent. After five thousand days (approximately thirteen years), the body's primordial Qi becomes abundant—like tender sprouts (huangya, "yellow sprouts") emerging in plants—reaching the perfect measure of eighty-one zhang (a symbolic number of completion). At fifteen years old, one is called a "pure youth," when Yang still resides within Yin, resembling the morning sun. Beyond this stage, one begins losing primordial Yang (Yuanyang), dissipating true Qi, leading to illness, aging, and ultimately death.

Ordinary people, due to ignorance, unknowingly deplete their spiritual light; through cruelty and evil deeds, they secretly diminish their lifespan. Thus in subsequent rebirths, differences emerge in social status and longevity. Life cycles endlessly through reincarnation—birth followed by death, death followed by rebirth—without ever attaining awakening, sinking deeper through generations, even reborn as animals (different lifeforms), forfeiting human form. The fundamental spiritual nature (the root of utmost truth) becomes difficult to recover as human, trapped in sidetracks of transmigration without liberation. Only by encountering genuine Daoist immortals can one eradicate karmic obstructions, shedding old existence like a snake molting its skin to regain human form. Yet most remain mired in delusion.

(Note: The terms "Taichu," "Taizhi," and "Taisu" belong to Daoist cosmogony's developmental stages; "huangya" refers to the nascent Yang energy within the body; both "Yuanyang" and "true Qi" denote the body's innate primordial energy.)

This dialogue recounts Lü Dongbin (Lü) seeking instruction from Zhongli Quan (Zhong) on transcending the cycle of birth and death to achieve immortality through cultivation.

Zhongli Quan first explains: To avoid falling into the rebirth cycle of the animal realm, one must maintain a body free from illness and untimely aging. As beings standing between heaven and earth, embodying both Yin and Yang, humans must take care not to degenerate into ghosts. Within the human path lies the potential for cultivation to become immortals (xian), who may then ascend to celestial realms.

Lü Dongbin questions this distinction: "When humans die they become ghosts, while successful cultivators become immortals—both transcend rebirth. Why emphasize 'ascension to heaven' for immortals?" Zhongli clarifies: Immortals and ghosts differ fundamentally. Ghosts are pure Yin without Yang; immortals are pure Yang without Yin; humans are a mixture of both. Humans face two paths: those who indulge desires without cultivation in youth become ghosts after death, while practitioners can transcend ordinary existence to become immortals. Immortals themselves divide into five grades, and cultivation methods into three levels of accomplishment, all depending on individual practice.

When Lü inquires further about these five grades and three methods, Zhongli elaborates: The three cultivation levels are lesser accomplishment, middle accomplishment, and great accomplishment. The five grades of immortals include ghost-immortal, human-immortal, earthbound immortal, divine immortal, and celestial immortal. Notably, ghost-immortals still belong to the ghostly path, while human-immortals remain essentially human.

This dialogue features Zhongli Quan (one of the Eight Immortals of Daoism) explaining to Lü Dongbin the two lowest ranks among the Five Classes of Immortals—Ghost Immortals and Human Immortals.

Regarding Ghost Immortals (Guixian): This represents the lowest tier among the Five Immortals. Practitioners fail to comprehend the true essence of the Dao (the Way) and seek quick results, their bodies becoming like withered wood and their minds like dead ashes. Though they can concentrate their Shen (spirit) to maintain a thread of consciousness without scattering, cultivating a Yin-spirit (shadowy spiritual form) through meditative absorption, this merely constitutes an ethereal ghostly entity rather than a pure Yang immortal. Since they rely solely on obsessive fixation to sustain their Yin-spirit from dissipating, they're called Ghost Immortals. Nominally immortals, they remain ghosts in essence. Some Buddhist practitioners throughout history, having reached this state, absurdly claimed enlightenment. While such beings may escape reincarnation, they cannot return to the Penglai paradise, ultimately forced to undergo rebirth.

Concerning Human Immortals (Renxian): This second-lowest rank involves cultivators who, though failing to grasp the profound Dao, master certain cultivation techniques and practice them unwaveringly throughout life. Through the fortuitous blending of the Five Phases' (Wood, Fire, Earth, Metal, Water) Qi (vital energy), their physical forms become robust, resistant to external pathogenic influences, enjoying health with few illnesses. These practitioners either abandon deeper cultivation due to shallow karmic roots encountering demonic obstacles, or stubbornly cling to singular methods: perhaps abstaining from five flavors while ignoring Six Qi (wind, cold, summer-heat, dampness, dryness, fire) regulation; restraining seven emotions without observing the Ten Precepts (basic Daoist commandments); practicing saliva-swallowing techniques while mocking breathwork; obsessing over sexual energy-stealing techniques while disparaging pure cultivation; relying solely on external substances to plunder celestial Qi while rejecting grain abstention; or exclusively visualizing solar-lunar essences while refusing Daoyin (guiding and pulling) exercises. They rigidly adhere to partial cultivation approaches, never comprehending the truth of the Dao's natural spontaneity.

This passage discusses the different stages and specific methods of Daoist cultivation. It first criticizes some erroneous practices: some practitioners contort their bodies and exhaust their physical forms in cultivation, failing to grasp the true meaning of Wuwei (non-action); others resort to unorthodox methods such as improper dual cultivation (exploiting yin to supplement yang) or consuming female breast milk—all of which are entirely different from the orthodox practice of refining the Golden Elixir. Such methods are too numerous to count. Though they may be considered forms of cultivation, they deviate from the original source of the Dao and can only be regarded as minor techniques. Even if successful, they merely prolong life slightly, earning the title of "Human Immortal" (renxian). There are also those who rush for quick results, practicing carelessly and ending up plagued by illness.

Regarding the cultivation method for "Earth Immortals" (dixian)—beings between mortals and celestial immortals—one must follow the patterns of yin and yang rising and falling in heaven and earth, aligning with the cycles of the sun and moon. Specific steps include recognizing the "dragon and tiger" (referring to Jing and Qi) within the body, harmonizing "kan and li" (water and fire), distinguishing the purity and turbidity of primordial Qi, and mastering the proper timing for cultivation. Through the interactions of the Five Phases (Wood, Fire, Earth, Metal, Water) and the revolutions of the Bagua (Eight Trigrams), one gathers and refines Jing and Qi in the lower Dantian (three inches below the navel). Through repeated practice, the elixir is formed, achieving immortality and becoming an Earth Immortal who dwells on land.

"Celestial Immortals" (shenxian) represent a higher stage than Earth Immortals. When an Earth Immortal grows weary of the mundane world and continues to refine their practice—employing techniques such as "extracting lead and adding mercury" (a Neidan term referring to balancing yin and yang)—they elevate the golden essence to the crown of the head and transform the jade nectar (saliva) into the elixir. Upon reaching the state where the Five Qi return to their origins (the energies of the five organs converge) and the Three Yang gather at the crown (yang energy fills the body), they shed their mortal form, eliminate all yin energy, and attain pure yang. This allows them to manifest an externalized body, transcending the mundane world and returning to immortal mountains like Penglai—this is the Celestial Immortal.

The highest stage is the "Heavenly Immortal" (tianxian). When a Celestial Immortal no longer wishes to remain on the immortal isles but comes to the human world to teach the Dao and aid others, accumulating merit until their virtue is complete, they ascend to the celestial realm and become Heavenly Immortals.

This dialogue records the transmission of cultivation essentials from Zhongli Quan (one of the Eight Immortals of Daoism) to Lü Dongbin, detailing the five grades of immortals and their corresponding cultivation methods.

Regarding the path to becoming a Celestial Immortal (Tianxian): If practitioners receive the celestial edict and return to their grotto-heavens (Dongtian) to continue cultivation, they may attain this rank. Those who achieve Celestial Immortality but wish not to remain permanently in the grotto-heavens may serve as celestial officials at three levels: lower-rank Water Officials, middle-rank Earth Officials, and upper-rank Heaven Officials. These officials perform great meritorious deeds for heaven and earth, with illustrious achievements recorded throughout history. Their promotion path begins with service in the Thirty-Six Grotto-Heavens, progresses through the Eighty-One Yang Heavens, and ultimately culminates in returning to the realm of supreme purity (Sanqing) - the highest Daoist heaven of primordial nothingness.

Lü Dongbin expressed that Ghost Immortals (Guixian) were too difficult to attain while Celestial Immortals seemed beyond reach, inquiring instead about methods for Human Immortals (Renxian), Earth Immortals (Dixian), and Spirit Immortals (Shenxian). Zhongli Quan explained that Human Immortals cultivate through minor attainment methods, Earth Immortals through intermediate methods, and Spirit Immortals through great attainment methods - all fundamentally interconnected. With proper methods, seeking the Dao becomes straightforward and immortality achievable.

When Lü Dongbin questioned why so few cultivators throughout history achieved longevity despite their efforts, Zhongli Quan identified the core issue as deviation from the Great Dao (Da Dao). Some practitioners, despite extensive learning, invented minor paths (Xiaodao) that ultimately led to inevitable death, falsely claiming attainment through "corpse liberation" (Shijie, the Daoist concept of discarding the physical form to achieve immortality). Such misleading practices created mutual admiration among misguided followers. Even with sincere devotion, these methods proved ineffective, invariably ending in death.

On the nature of the Great Dao: When Lü Dongbin inquired about its essence, Zhongli Quan responded that the Great Dao has no form or name, being beyond verbal description - infinitely vast yet immeasurably minute, equally difficult to comprehend and practice. This dialogue reveals the critical importance of following orthodox methods while avoiding heretical paths in Daoist cultivation.

The path of cultivation has clear progressive stages: first one must understand what the Dao is, then truly comprehend it, and finally achieve complete realization. Those who attain the Dao can transcend the mundane world, ascend to the Penglai Immortal Isles, enter the Grotto Heavens (Daoist celestial realms), rise further to the higher Yang Heaven realms, and ultimately reach the sacred Sanqing (Three Pure Ones) realm—the highest Daoist paradise. These are the true adepts who have attained the Dao.

Now you, Master, say that the Dao can neither be truly comprehended nor practically cultivated—has the Dao thus become hidden?

Zhongli Quan (one of the Eight Immortals) replied: I have never concealed the true meaning of the Dao. It's just that most people in this world who claim to cultivate the Dao merely possess the name without the reality. When they first hear of the Great Dao, they lack steadfast conviction; even with slight faith, they cannot endure hardship—starting cultivation in the morning but abandoning it by evening, forgetting their practice the moment they rise from seated meditation. Though diligent at first, they ultimately give up halfway. Precisely because of this, I say the Great Dao is both difficult to know and difficult to practice.

Lü Dongbin (another of the Eight Immortals) pressed further: Why is the Great Dao so difficult to know and practice?

Zhongli Quan explained: Those minor techniques of heterodox paths show quick results, and ordinary people delight in teaching them to each other, remaining unenlightened until death—this instead creates harmful trends that corrupt true cultivation. Consider these examples: some specialize in fasting, some abstain from grains, some gather heaven-and-earth Qi, some rinse their mouths and swallow saliva, some abandon their wives, some renounce delicious foods, some sit in meditation, some maintain vow of silence, some visualize and retain Shen (spirit), some gather Yin to supplement Yang, some ingest primal Qi, some maintain purity, some quell deluded thoughts, some sever worldly ties, some open the crown for empowerment, some contract the perineum, some retreat into seclusion, some recite scriptures, some refine elixirs with cinnabar, some regulate breathing, some practice Daoyin (guiding and stretching) massage, some exhale the old and inhale the new, some gather and supplement primal Qi, some donate wealth, some make offerings to spirits, some aid the poor, some dwell in deep mountains, some investigate their original nature, some sit motionless in stillness, some chant mantras and practice rituals... these heterodox minor methods are too numerous to list. As for those who try to gather the essence of sun and moon, seize the primal Qi of heaven and earth, imagine forming a Golden Elixir through empty speculation, or torment their bodies seeking liberation through one-sided cultivation methods that only accumulate without release...

The method of cultivating health and healing illness can be understood as authentic embryonic breathing (a Daoist Neidan/internal alchemy breathing technique), which requires abandoning distracting thoughts and forgetting speech to nurture one's innate nature. This resembles how the Great Unity (Taiji, the supreme Daoist deity) contains true Qi, achieving the life-nourishing state where "the golden spear never falls" (preservation of Jing/essence) and "the Yellow River flows backward" (reverse circulation of vital energy). During cultivation, one's body should remain still as withered wood, with a heart empty as dead ashes, fully concentrated in spirit.

Regrettably, practitioners throughout history often cling to minor techniques—mistaking saliva swallowing for divine medicine while fantasizing this could gather primordial energy to form the inner elixir; symbolizing the liver as dragon and lungs as tiger (Neidan terminology representing yin-yang harmonization) while imagining this facilitates their union; interpreting the Kan trigram (representing kidney-water) as lead and Li trigram (heart-fire) as mercury (Waidan/external alchemy terms adapted for Neidan) while assuming this completes the extraction-and-addition process (alchemical terminology); even deluding themselves that seasonal nourishment alone could cultivate the "yellow sprout" (symbol of nascent inner elixir).

These practitioners lack singular focus yet seek the supreme medicine, missing proper celestial timing while fundamentally misunderstanding the generative principles of the Five Phases (Wood, Fire, Earth, Metal, Water) and the profound mysteries of creation within the Three Powers (heaven-earth-humanity). They merely parse texts superficially, misleading posterity until authentic cultivation methods grow increasingly distant while heterodox practices flourish. Such trends betray ancestral intentions—all due to shallow knowledge transmitted through hearsay, revealing secret techniques to the ignorant and step-by-step leading people toward the Yellow Springs (land of the dead). This chilling reality stems not from unwillingness to clarify the Great Dao, but because worldly people bear heavy karmic obstructions with scant virtue, disbelieving celestial mysteries while valuing wealth over life, willingly becoming base ghosts.

Lü Dongbin inquired: "These minor heterodox methods I now understand—might you explain the true Great Method of cultivation?" Zhongli Quan replied: "The Great Dao fundamentally transcends speech—the very question lacks an answer. Yet since chaos first divided and primordial simplicity dispersed, the pattern emerged: 'Dao begets One, One begets Two, Two begets Three.' One is the origin, Two its function, Three the transformation. Origin and function never depart from yin-yang; all transformations arise from their intercourse. Above-middle-below divide as heaven-earth-humanity—all ultimately stem from singular Dao. Dao generates yin-yang's two energies, which transform into Three Powers; Three Powers derive the Five Phases; Five Phases nurture the myriad beings. Among all beings, none surpass humanity in spiritual nobility."

This dialogue records a discussion on Daoist cultivation principles between Zhongli Quan (one of the Eight Immortals) and Lü Dongbin. Lü Dongbin raises a question: While heaven and earth endure eternally, human lifespans are fleeting—why does the Dao seem manifest in the cosmos yet distant from humanity?

Zhongli Quan explains that the Dao actually remains close to humans; it is people who distance themselves from it. This estrangement occurs for three reasons: first, ignorance of proper life-nurturing methods; second, failure to grasp optimal timing in cultivation practice; and most crucially, third, lack of understanding regarding heaven and earth's operational mysteries.

When Lü presses about these cosmic secrets, Zhongli reveals they concern the fundamental patterns by which heaven and earth employ the Dao—the ceaseless cyclical interactions between above and below—though such knowledge cannot be lightly disclosed. He elaborates: After the Dao differentiates into concrete phenomena ("having form after division"), heaven receives the Way of Qian (the Yang cosmic principle), whose essence is "one"—light and pure in nature, ascending to dominate above. Earth receives the Way of Kun (the Yin cosmic principle), whose essence is "two"—heavy and turbid in nature, descending to settle below. The mutual ascent and descent of Yin-Yang interact harmoniously; Qian and Kun's operations never contravene the Dao, thus enabling both inception and manifestation.

Lü then poses the pivotal question: If heaven's Yang governs ascent and earth's Yin governs descent, how do they intersect? Without this celestial-terrestrial communion and Yin-Yang fusion, Qian and Kun couldn't function effectively. Even with beginnings and apparent results, how then could one attain the Dao? This inquiry leads to deeper subsequent discussions about Yin-Yang harmonious interaction and heaven-earth resonance.

Zhongli Quan (one of the Eight Immortals of Daoism) explains: The essence of heavenly Dao (the Way) is Qian (Yang energy), which uses Yang Qi (vital energy) as its driving force to gather energy above. The essence of earthly Dao is Kun (Yin energy), which uses Yin Qi as its driving force to gather energy below.

When heavenly Dao operates, Qian (Yang) draws energy from Kun (Yin): the first drawing generates the Zhen trigram (representing Thunder) as the eldest son; the second produces the Kan trigram (representing Water) as the middle son; the third creates the Gen trigram (representing Mountain) as the youngest son. These are the three Yang forces generated through Qian drawing from Kun.

When earthly Dao operates, Kun (Yin) draws energy from Qian (Yang): the first drawing generates the Xun trigram (representing Wind) as the eldest daughter; the second produces the Li trigram (representing Fire) as the middle daughter; the third creates the Dui trigram (representing Marsh) as the youngest daughter. These are the three Yin forces generated through Kun drawing from Qian.

When these three Yang and three Yin energies intermingle, all things begin to grow; when the three Yin and three Yang fully unite, all things take form. The generation of all beings between heaven and earth fundamentally stems from this mutual drawing and operating principle between Qian-Kun and Yin-Yang.

The mutual drawing between Qian and Kun produces six energies (three Yin and three Yang), whose fusion differentiates into the Five Phases (Metal, Wood, Water, Fire, Earth). The interactions of these Five Phases ultimately generate all things. After completing three downward drawings, Yang Qi ascends back to heaven already containing Yin within it. Similarly, after completing three upward drawings, Yin Qi descends back to earth already containing Yang within it.

The Yin contained within Yang cannot dissipate - this is called "True Yin." When True Yin ascends to heaven, it manifests through Yang. The Yang contained within Yin cannot perish - this is called "True Yang." When True Yang descends to earth, it manifests through Yin. This perpetual cycle of mutual containment between Yin and Yang never ceases - it is the fundamental reason for heaven and earth's enduring stability.

Lü Dongbin (another Daoist immortal) responds: Heaven and earth attain eternity through this Yin-Yang operating principle - this is their natural creative function. Though humans possess wisdom and spiritual nature, their cultivation of the Great Dao through purity yields varying results: at minimum achieving health and longevity, at medium attaining immortality, at greatest transcending mortal form to become immortals. How then should one emulate heaven and earth's operating principles to practice cultivation of the Great Dao?

This scripture elucidates how the supreme Dao (the fundamental cosmic principle) gives birth to all things through the interaction of Yin and Yang, while also revealing the mysteries of Qi circulation within the human body.

The Dao itself has no fixed form—it manifests through the concrete expressions of all phenomena. Nor does it possess specific names—it acquires designations through the characteristics of all beings. When Heaven and Earth receive the Dao, they manifest as the Way of Qian (Heaven) and Kun (Earth); when the sun and moon receive the Dao, they manifest as the Way of Yin and Yang. In human society, relationships such as ruler and subject, husband and wife, elder and younger, friends, and father and child are all expressions of the Dao in different contexts.

The text particularly describes the subtle process of Yin-Yang interaction during conception: the father's Yang Qi first merges with the mother's Yin Qi, while heart fire (associated with the Fire phase) and kidney water (associated with the Water phase) intermingle, refining into essential essence (Jing). This essence, nurtured in the mother's womb through the continuous interplay of Yin and Yang Qi, ultimately develops into a fetus. Just as the movement of Heaven and Earth and the interaction of Qian and Kun generate the three Yin and three Yang (six fundamental energetic states), the true Qi (true Yang) and true water (true Yin) within the human body also contain and circulate with each other—true Qi, being Yang, resides within water and governs ascent, while true water, being Yin, resides within Qi and governs descent.

The text correlates the Eight Trigrams (Bagua) with human organs: Zhen (Thunder) corresponds to the liver, Kan (Water) to the kidneys, and Gen (Mountain) to the bladder (belonging to the Yang system); Xun (Wind) corresponds to the gallbladder, Li (Fire) to the heart, and Dui (Lake) to the lungs (belonging to the Yin system). After the fetus forms and is born, the primordial Yang (innate Yang Qi) in the kidneys generates true Qi, which ascends to the heart and transforms into true liquid (a refined substance). This true liquid then returns to the kidneys, forming a cyclical process. If one can maintain this cycle without depletion, longevity can be achieved. If one can precisely regulate the timing of Yin and Yang interaction (adjusting and refining), immortality becomes possible. And if one cultivates diligently until Yin Qi is fully transformed and Yang Qi becomes pure and complete, transcendence into sagehood can be attained. This is the profound celestial secret passed down through the ages.

This dialogue records Zhongli Quan (one of the Eight Immortals of Daoism) imparting to Lü Dongbin the principles governing the movements of heaven and earth, sun and moon. The core teaching reveals:

The fundamental pattern of cosmic movement lies in the transformations of Yin and Yang. The sun and moon embody the essences of Supreme Yang and Supreme Yin respectively, silently recording the patterns of celestial intercourse that propel all beings' growth. The sun rises in the east and sets in the west, demarcating day and night. The moon follows a different course—its physical form (the Yin aspect called "po") emerges from the west while receiving its luminous Yang aspect ("hun") from the east.

To elaborate: When primordial chaos first divided, heaven and earth took form like an egg, with sun and moon revolving within like spheres. The sun's eastward ascent and westward descent create day and night—when it rises in the east before completely setting in the west, it's daytime; when fully set before the next eastern ascent, night falls. The moon's movement proves more intricate: its physical manifestation appears in the west while its luminosity is received from the east, shining at night while hiding by day. Its phases resemble a gradually filling bow—from new moon to first quarter (around the seventh lunar day), its radiance steadily intensifies.

Here, "hun" symbolizes the moon's luminous Yang aspect while "po" represents its substantial Yin form, vividly illustrating how lunar phases manifest the waxing and waning of Yin-Yang energies. These celestial rhythms mirror earthly seasonal changes with perfect precision, like the alternation of cold and heat. Practitioners must comprehend these natural patterns to discern the optimal moments for cultivation.

This passage records a dialogue where Zhongli Quan explains to Lü Dongbin the relationship between celestial movements and Daoist cultivation. It primarily discusses two fundamental patterns:

Regarding lunar cycles, the moon manifests different phases depending on its celestial position: When in the southern sky, its hun-po (the moon's yin-yang aspects) become perfectly full, shining at night. In the eastern sky, the hun-po first emerge like a crescent moon. When positioned in the west, the hun-po appear halfway as a half-moon. In the northern sky, though the hun-po achieve fullness, they remain opposite the sun and thus remain hidden during daylight. This explains how lunar phases demarcate day and night.

Concerning solar movements, after the winter solstice the sun rises from the southeast (Chen position) and sets in the southwest (Shen position). After the summer solstice, it rises from the northeast (Yin position) and sets in the northwest (Xu position). This north-south solar migration determines seasonal changes: When the sun moves south to north, cold transforms into heat; when moving north to south, heat shifts to cold. Winter daylight corresponds to summer nighttime, and vice versa. Notably, the moon's path opposes the sun's—after winter solstice it moves north to south, and after summer solstice south to north.

The text concludes that heaven-earth's profound operation lies in yin-yang's cyclical ascent and descent. Practitioners (xingchi zhi ren) who emulate these solar-lunar conjunctions (chandu), comprehending the Taiji (Supreme Ultimate) principle of yin-yang's generative alternation through continuous cultivation, may achieve harmony with the Dao and attain longevity. Here, celestial movements mirror the internal circulation of yin-yang qi within the human body, embodying Daoism's philosophy of cosmic-human unity.

This scripture elucidates how Daoist practitioners cultivate themselves by observing the celestial patterns of heaven and earth. The immortal masters Zhongli Quan and Lü Dongbin discuss the essential principles of cultivation:

In the natural operation of heaven and earth, the moon absorbing the sun's essence mirrors the practitioner's process of transforming yin-substance with yang-energy, ultimately achieving a body of pure yang. When yin-qi is completely converted into yang-qi—like the moon becoming crystalline without any dark side—the cultivator sheds their mortal form and attains an immortal body.

Lü Dongbin inquires: "Should practitioners first comprehend the principles of yin-yang's ascent and descent in heaven and earth, or begin by studying the interaction patterns of solar and lunar essences?" Zhongli Quan replies: "First emulate celestial mechanisms by understanding yin-yang's cyclical movement, merging true water (kidney jing) with true fire (heart fire) into unity. Refining this into the Golden Elixir (Jindan) that permanently resides in the dantian (lower abdominal energy center) grants longevity matching heaven and earth. Those unsatisfied with worldly existence may further cultivate during sun-moon conjunctions, using yang-energy to refine yin-substance and nourish the primordial spirit (yuanshen) with true qi."

Lü probes further about specific temporal nodes. Zhongli explains: "Heaven-earth's yin-yang interacts annually, solar-lunar essences merge monthly, while human qi-fluid circulates daily. A human lifespan divides into four phases: vigorous growth before 30, prime maturity (30-60), gradual decline (60-90), and deterioration (90-120)—these reflect the body's internal chronobiology. When dividing a day into twelve double-hours..." (subsequent discussion addresses optimal cultivation periods within daily cycles).

This dialogue reveals core Daoist cultivation principles: guiding self-cultivation through cosmic observation, seizing critical yin-yang interaction moments, and ultimately attaining enduring vitality. Practitioners must master four temporal cycles (yearly, monthly, daily, hourly) and apply corresponding methods through life's different stages.

This scripture elucidates the Daoist practice of observing natural rhythms by dividing time into distinct layers to comprehend the patterns of Yin-Yang transformation.

The year divides into four seasons, each with specific Yin-Yang characteristics: Spring embodies Yang within Yin (as Yin qi weakens and Yang qi begins to grow), transforming cold into mild warmth; Summer manifests pure Yang (at its zenith), turning warmth into heat; Autumn contains Yin within Yang (as Yang qi wanes and Yin qi emerges), shifting heat into coolness; Winter represents pure Yin (at its peak), changing coolness into severe cold. These constitute the two fundamental phases of Yin-Yang transformation in the annual cycle (twofold division).

Each month observes three lunar phases: from new moon to first quarter (Yang emerging within Yin), first quarter to full moon (pure Yang within Yang), full moon to last quarter (Yin emerging within Yang), and last quarter to dark moon (pure Yin within Yin). This forms the threefold temporal division within the monthly cycle.

The day further subdivides into four periods (fourfold division) corresponding to the Bagua (Eight Trigrams): Zi to Mao hours (midnight to dawn) belongs to Yang emerging within Yin, transitioning from Great Yin (Kun trigram) to Lesser Yang (Zhen trigram); Mao to Wu hours (dawn to noon) represents pure Yang within Yang, shifting from Lesser Yang (Zhen) to Great Yang (Qian trigram); Wu to You hours (noon to dusk) shows Yin emerging within Yang, moving from Great Yang (Qian) to Lesser Yin (Xun trigram); You to Zi hours (dusk to midnight) manifests pure Yin within Yin, transitioning from Lesser Yin (Xun) back to Great Yin (Kun).

The term "lülü" (pitch pipes) referenced here originally denotes ancient musical temperament terminology, here metaphorically representing the precise rhythm of Yin-Yang alternation. Practitioners harmonize their cultivation timing and methods by mastering these natural cycles of Yin-Yang waxing and waning.

This scripture discusses the four most commonly overlooked "timings" in spiritual cultivation:

The first is "the timing within one's lifespan" - referring to the golden age for Daoist practice. In youth, when one's Qi (vital energy) is abundant, a thousand days of cultivation can bring great attainment. Though middle-aged practitioners must first replenish their depleted essence, they still have opportunities for rejuvenation. Sadly, most people squander their youth in worldly pleasures, only turning to cultivation when aged and feeble - like lingering snow in spring or withering flowers in autumn, it's already too late.

The second is "the monthly timing within the year" - the optimal seasonal periods for practice. People often idle away time enjoying spring blossoms, autumn moons, and pleasant breezes, only to find themselves plagued by illness when they finally seek cultivation. Like a leaking boat, progress then becomes nearly impossible.

The third is "the hourly timing within the day" - the daily windows for effective practice. Most toil at dawn chasing profit and fret over gains and losses late into night. Yet no amount of gold can cure serious illness, and no number of descendants can stand in at life's final moment. Those rushing about day and night fail to comprehend this truth.

The fourth is "the lunar timing within the month" - the critical junctures of Yin-Yang transformation (Daoism particularly emphasizes lunar phases' influence on cultivation).

When Lü Dongbin asked why special emphasis was placed on the difficulty of grasping "the timing within one's lifespan" and "the hourly timing within the day," Zhongli Quan explained: Youth provides the most stable foundation for cultivation, while middle age still allows for remedy. Yet people either don't understand practice in youth or remain unawakened in middle age, only seeking the tranquil state of Wuwei (non-action) when disaster or illness strikes. This is like waiting until a leaking house collapses before attempting repairs - usually far too late.

This scripture discusses the stages of cultivation and the correspondence between the human body and the cyclical patterns of heaven and earth.

The practice begins with safeguarding body and mind, followed by replenishing primordial Qi (vital energy). One starts with minor techniques, gradually accumulating skill until achieving moderate attainment. At this stage, practitioners may reverse aging, preserve youthful appearance, and extend lifespan. However, if the Five Qi (energies of the five organs) fail to return to their origin, and the Three Yang (Jing-essence, Qi-energy, and Shen-spirit) cannot gather at the crown, it becomes impossible to undergo the transformation of shedding the mortal body and ascending to immortality. The most crucial yet elusive aspect is seizing the optimal internal timing for cultivation.

Lü Dongbin asked: "The internal timing for cultivation is indeed rare, but why is daytime practice also so important?" Zhongli Quan explained: "A single day in the human body corresponds to a month in the movement of the sun and moon, while a month mirrors a year in the cycles of heaven and earth. The Dao gives birth to heaven and earth—heaven above and earth below, separated by 84,000 li. After the winter solstice, Yang energy rises from within the earth, ascending 7,000 li every fifteen days. After 180 days, it reaches the celestial pole, at which point Yin energy begins to emerge. After the summer solstice, Yin energy descends from the heavens, likewise dropping 7,000 li every fifteen days. After another 180 days, it reaches the earthly pole, and Yang energy begins to rise again—an endless cycle.

The movement of the sun and moon follows the same principle. Each has a diameter of 840 li. After the new moon, the Yang energy (Hun-soul) within the Yin essence (the moon’s Po-body) grows by 70 li per day. Over fifteen days—spanning 180 ancient time periods (each day divided into twelve double-hours)—the Yang energy within the moon expands by 840 li, resulting in the full moon. After the full moon, Yin energy (Po) within the Yang essence (Hun) increases by 70 li daily, returning to the new moon after another fifteen days—a perpetual cycle.

Among all beings, humans are the most spiritually endowed and precious. The distance between the heart and kidneys is eight and four-tenths inches, mirroring the ascent and descent of Yin and Yang in accordance with heaven and earth. Kidney energy generates heart fluid, while heart fluid transforms into kidney energy—the mutual generation of energy and fluid resembles the alternation of sun and moon. Heaven and earth interact through Qian (Heaven, Yang) and Kun (Earth, Yin), completing one Yin-Yang cycle per year. The sun and moon exchange essence through Hun (Yang soul) and Po (Yin soul), completing one cycle of essence alternation per month. If the human body follows these rhythms in cultivation, one may achieve longevity equal to heaven and earth.

This passage discusses the crucial importance of timing the union of Yin and Yang in cultivation practice. The immortal masters Lü Dongbin (Lü) and Zhongli Quan (Zhong) engage in a dialogue about essential cultivation principles.

Lü observes that while many people know about cultivation, few truly understand the precise timing for Yin-Yang union or the methods of gathering and supplementing (techniques for absorbing heaven-earth essences). The moon waxes and wanes, the sun advances and retreats, yet ordinary practitioners neither recognize when to gather Yin Qi nor when to nourish Yang Qi, thus wasting precious time. Some even expose themselves recklessly to wind and dampness, summer heat and winter cold, neglecting proper cultivation until illness claims them.

Zhongli explains that true cultivation requires mastering temporal rhythms: bodily transformations must align with annual, monthly, daily, and hourly cycles. The five viscera (heart, liver, spleen, lungs, kidneys) correspond to the Five Phases (Metal, Wood, Water, Fire, Earth), each following specific patterns of Qi flourishing and declining through months, days, and hours. For instance, the eastern Wood phase corresponds to spring, governed by the Green Emperor (one of the Five Directional Deities), where Yang Qi ascends within Yin's embrace. Cultivation must follow these natural patterns through the stages of refining Jing into Qi, Qi into Shen, and Shen into emptiness, ultimately merging with the Dao.

Lü then inquires: How do the Five Phases (Metal, Wood, Water, Fire, Earth) and their corresponding directions (east, west, south, north, center) mutually generate and complete each other? What are the exact methods and timings for Yin-Yang union and essence gathering?

This reveals Daoist cultivation's core principle: the human body as a microcosm must synchronize with the macrocosm's celestial rhythms. Practitioners must precisely comprehend the spatial-temporal patterns of the Five Phases' mutual generation and restraint, along with Yin-Yang's cyclical waxing and waning, performing specific cultivation methods at designated hours to refine essence and Qi, ultimately attaining unity with the Dao.

This scripture elucidates how the Five Directional Emperors (Green Emperor, Red Emperor, Yellow Emperor, White Emperor, and Black Emperor) govern the seasonal transformations and the cyclical patterns of the Five Phases (Wood, Fire, Earth, Metal, Water).

Spring is governed by the Green Emperor (the Wood Deity of the East), when all beings begin to flourish. Summer is ruled by the Red Emperor (the Fire Deity of the South), marking the zenith of Yang Qi. Autumn falls under the White Emperor’s (the Metal Deity of the West) domain, as Yin Qi begins to ascend. Winter is overseen by the Black Emperor (the Water Deity of the North), when Yin Qi reaches its peak. The Yellow Emperor (the Earth Deity of the Center) presides over the transitional periods—the last eighteen days of each season—facilitating the smooth progression of the seasons. Each deity governs seventy-two days, collectively forming the complete 360-day cycle of the year.

The Five Phases correspond to the Heavenly Stems: Jia and Yi belong to Wood, Bing and Ding to Fire, Wu and Ji to Earth, Geng and Xin to Metal, Ren and Gui to Water. These Five Phase energies manifest in nature: Wood appears as the Azure Dragon, Fire as the Vermilion Bird, Earth as the Hooked Array (Gouchen), Metal as the White Tiger, and Water as the Black Tortoise. When the phases interact, specific phenomena arise—for instance, when Yi Wood combines with Geng Metal, green-and-white elm trees flourish in spring; when Xin Metal merges with Bing Fire, red-and-white jujubes ripen in autumn.

Lü Dongbin asked: "If the Five Phases operate this way in nature, how do they manifest in the human body?" Zhongli Quan replied: "The human head is round like heaven, and the feet are square like earth—the body inherently embodies the characteristics of heaven and earth. The rising and descending of Yin and Yang Qi within the body follow the same patterns as celestial and terrestrial movements. The descent of Yin Qi and ascent of Yang Qi reflect the microcosmic operation of heaven and earth within the human form."

This passage explains the correspondence between the five internal organs and the Five Phases (Wood, Fire, Earth, Metal, Water), along with their generative and controlling interactions.

The five organs correspond to the Five Phases: kidneys govern Water, heart governs Fire, liver governs Wood, lungs govern Metal, and spleen governs Earth. They interact through two fundamental relationships:

First is the generative cycle (mother-child relationship):

Kidney Water nourishes Liver Wood (Water generates Wood)

Liver Wood fuels Heart Fire (Wood generates Fire)

Heart Fire warms Spleen Earth (Fire generates Earth)

Spleen Earth cultivates Lung Metal (Earth generates Metal)

Lung Metal enriches Kidney Water (Metal generates Water)

Here the generating element acts as mother to the generated child.

Second is the controlling cycle (husband-wife relationship):

Kidney Water controls Heart Fire (Water overcomes Fire)

Heart Fire controls Lung Metal (Fire overcomes Metal)

Lung Metal controls Liver Wood (Metal overcomes Wood)

Liver Wood controls Spleen Earth (Wood overcomes Earth)

Spleen Earth controls Kidney Water (Earth overcomes Water)

Here the controlling element acts as husband to the controlled wife.

Regarding specific organ functions:

The heart internally governs blood vessels, externally manifests in facial complexion, with the tongue as its gateway. Though restrained by kidneys, it influences lungs. Its function strengthens when cooperating with liver, but weakens when encountering spleen.

The kidneys internally form bones, externally manifest in hair, with ears as their gateway. Though restrained by spleen, they influence heart. Their function strengthens when cooperating with lungs, but weakens when encountering liver.

The liver internally forms tendons, externally manifests in nails, with eyes as its gateway. Though restrained by lungs, it influences spleen. Its function strengthens when cooperating with kidneys, but weakens when encountering heart.

The lungs internally form skin, externally manifest in body hair, with nostrils as their gateway. Though restrained by heart, they influence liver. Their function strengthens when cooperating with spleen, but weakens when encountering kidneys.

The spleen internally nourishes and balances heart, kidneys, liver and lungs, externally forms muscles, with lips as its gateway, regulating Qi through respiration. Restrained by liver, it maintains the entire system's balanced operation.

These relationships constitute the body's subtle energy circulation system, forming essential theoretical foundations for understanding human physiology in Daoist Neidan (internal alchemy) practice.

This passage explains the mutual generation and restraint relationships among the Five Phases (Wood, Fire, Earth, Metal, Water) within the human body, and how these principles are applied in Neidan (internal alchemy) practice.

The kidneys correspond to Water and the heart to Fire. Following the spousal pairing principle, when heart-fire flourishes, kidney-water diminishes. The lungs correspond to Metal, and according to the mother-child generation sequence, lung-metal influences kidney-water. These relationships reveal the waxing and waning transformations of primordial Qi within the body.

Lüzu (Ancestor Lü) asked: Heart-fire belongs to Yang—how can it descend? Kidney-water belongs to Yin—how can it ascend? The spleen-earth resides in the center—if it receives heart-fire, wouldn't it become overactive and restrain kidney-water? Lung-metal resides above—if it draws down heart-fire, wouldn't it become damaged? How then could it generate kidney-water? When the Five Phases generate each other, they alternate; when restraining, they connect directly—how should we handle this mutual restraint?

Zhongzu (Ancestor Zhong) replied: The key lies in returning the Five Phases to their origins and using primordial Qi for connection. When primordial Yang-Qi ascends, it produces true water (kidney-jing); true water transforms into true Qi, which then generates the Yang-spirit (shen). In practice, we must position the Five Phases properly, with kidney-water as foundation. Within kidney-water lies metal-nature (lung-metal), for metal generates water. Beginners must learn to recognize metal within water. Water naturally fears earth (spleen-earth), but after gathering the medicinal essence, we must return earth to water.

The dragon symbolizes liver-wood; the tiger symbolizes lung-metal. The Yang dragon emerges from the Li palace (heart-fire), while the Yin tiger is born in the Kan position (kidney-water). When the Five Phases follow their natural sequence, primordial Qi circulates through mother-child generation from midnight (zi hour) to noon (wu hour)—the period of Yang growth. When the Five Phases operate inversely, essence and fluids generate each other like spouses cooperating from noon to midnight—refining Yang within Yin. Yin and Yang must harmonize: without Yin, Yang cannot take form; without Yang, Yin cannot grow. Only through their balance can longevity be achieved.

Lüzu further inquired: The Five Phases originate from the single Qi of Yin-Yang—what exactly is this Qi? Zhongzu explained: This Qi first emerges from the mingling of parental essence and blood during conception, forming the embryo. The kidneys generate the spleen, which generates the liver, which generates the lungs, which generate the heart, which in turn generates the small intestine and other organs—this is the formative function of Yin-jing. The original Yang-Qi initially exists only as the true Yang spark between the two kidneys. Though kidneys belong to Water, they contain true fire (gate of life fire) which rises and transforms into Qi, ascending to the heart. The heart belongs to Yang; when Yang meets Yang, the Taiji generates Yin, accumulating Qi to produce fluids that then descend from the heart.

This passage explains the principles of Qi (vital energy) and Jing (essence) circulation within the human body. The kidneys (water organ) and heart (fire organ) interact like heaven and earth's Yin-Yang dynamic: kidney Qi ascends to the heart and lungs, while heart fluids descend to the kidneys. This cyclical movement mirrors the cosmic interplay of Yin-Yang, with the liver and lungs' Qi mechanisms operating like the sun and moon's alternation, following the generative sequence of the Five Phases (Wood, Fire, Earth, Metal, Water).

The key lies in primordial Qi (the foundational life force), which generates bodily fluids that in turn transform into true Qi. The kidneys serve as the root of Qi, while the heart is the source of fluids. When cultivation reaches certain stages:

• Abundant kidney Qi spontaneously produces "true water" (the refined essence of kidneys)
• A tranquil heart-mind naturally reveals "true fire" (the spiritual light of heart)

Practitioners must:

1. Recognize the "true dragon" (original spirit/Shen, the primordial consciousness) within heart fire

2. Discern the "true tiger" (original Jing, the primordial energy) within kidney water

When these two primordial forces unite, they generate "yellow sprouts" (huangya), the embryonic form of the Golden Elixir (Jindan). Through further condensation, these sprouts mature into the "great medicine" (the perfected Golden Elixir). Achieving this elixir enables one to become an immortal.

Lü Dongbin asked: "I understand the principle of refining the Golden Elixir to attain immortality, but what exactly are these yellow sprouts?" Zhongli Quan replied: "They are the union of the true dragon and true tiger." Pressing further, Lü Dongbin inquired: "Then what do the dragon and tiger specifically represent?"