《周易參同契(三)》

This middle section of the Zhouyi Cantongqi primarily expounds on the principles of Yin-Yang interaction, hexagram operation, and the laws governing state governance and self-cultivation:

1. Harmony of Yin and Yang

The Qian hexagram (representing Heaven and masculine vigor) and Kun hexagram (representing Earth and feminine receptivity) complement each other, with Yang energy leading and Yin energy supporting—just as the union of male and female gives birth to all things. The Kan (Water) and Li (Fire) hexagrams hold primary positions, their radiance illuminating all directions. These profound principles are beyond measure; even sages can only infer their inherent order.

2. Cyclical Movement of Hexagrams

The sixty hexagrams revolve like a wheel, akin to a wise ruler steering a chariot. Aligning with celestial timing ensures smooth progress, while defiance of natural laws invites peril, even the collapse of a state. This echoes the principles of dawn and dusk changes discussed in the opening chapter's "Zhun" and "Meng" hexagrams.

3. Resonance of Words and Deeds

When a noble person speaks virtuous words indoors, their influence reverberates a thousand miles away. Just as an emperor issues decrees from the palace depths, one must harmonize with Yin-Yang seasonal rhythms. Preparing tools requires awaiting the opportune moment, never disregarding the dates indicated by hexagrams (e.g., "Zhun" favors Zi and Shen days; "Meng" favors Yin and Xu days).

4. Aligning with Heaven and Humanity

Establishing laws should emulate the practice of benevolent virtue. Defying cosmic principles brings misfortune; compliance ensures prosperity. Strict adherence to the calendar and observation of seasonal transitions are essential. Disruptions like misplaced solstices, reversed winter-summer cycles, or anomalous equinoxes trigger calamities—floods, droughts, locust plagues, and earthquakes.

5. Heaven-Human Resonance

A filial child's sincerity can move Heaven. A ruler's thoughts—whether summoning disaster or blessing, peace or war—originate from a single intention in the heart. Movement and stillness must follow constant laws; the four seasons must align with their proper timings. Firmness and gentleness maintain balance without conflict; the Five Phases (Wood, Fire, Earth, Metal, Water) each hold their positions without disorder. The Yijing's wisdom lies in this cyclical flow.

6. Najia Theory (Hexagram-Celestial Stem/Earthly Branch Correspondences)

This section also explains the correspondence between the eight trigrams and the stems/branches:

• Qian hexagram: Jia and Ren
• Kun hexagram: Yi and Gui
• Zhen hexagram: Geng
• Xun hexagram: Xin
• Kan hexagram: Wu
• Li hexagram: Ji
• Gen hexagram: Bing
• Dui hexagram: Ding

For the six-line hexagrams specifically:

• Qian’s lower three lines: Jiazi, Jiayin, Jiachen
• Qian’s upper three lines: Renwu, Renshen, Renxu
• Kun’s lower three lines: Yiwei, Yisi, Yimao
• Kun’s upper three lines: Guichou, Guihai, Guiyou

This scripture primarily discusses the two temporal cycles of "fire timing" (huohou, the mastery of cultivation timing) in Daoist Neidan (internal alchemy) practice: the daily fire timing and the monthly fire timing.

The first section explains the daily fire timing:

It uses sixty out of the sixty-four hexagrams (excluding Qian, Kun, Kan, and Li) to correspond with the changing hours of a day. For example:

• Morning practice employs the "Zhun hexagram," with its initial Yang line (Chujiu) corresponding to the Zi hour (11 PM–1 AM) and its fourth Yin line (Liusi) matching the Mao hour (5–7 AM).
• Evening practice uses the "Meng hexagram," where the initial Yin line (Chuliu) aligns with the Wu hour (11 AM–1 PM) and the fourth Yin line (Liusi) with the You hour (5–7 PM).

The remaining sixty hexagrams similarly follow this method to calculate their corresponding hours.

The second section details the monthly fire timing:

It employs the thirty-day lunar cycle as a metaphor for the cultivation process:

1. Days 1–3 (between the new and waxing moon): The state of chaotic intermingling of Yin and Yang.

2. Day 8: Yin energy begins to manifest (dominated by the Dui hexagram).

3. Day 15: Yang energy peaks (completion of the Qian hexagram).

4. Day 23: Yin energy gradually strengthens (governed by the Gen hexagram).

5. Day 30: Yang energy exhausts itself, preparing for a new cycle.

The text uses "Ji and Dou" (two of the twenty-eight lunar mansions) to symbolize the northeast direction, representing the starting point of cultivation. Through the "Najia method" (a system correlating celestial stems and earthly branches with the hexagrams), it calculates the waxing and waning of Yin and Yang energies within the lunar cycle to guide the timing of practice.

Finally, it mentions the "armillary sphere" (an ancient astronomical instrument) as a metaphor for the precision required in cultivation—just as one observes celestial phenomena to accurately grasp the patterns of Yin-Yang transformation. It emphasizes aligning practice with natural rhythms, for the fluctuations of Yin and Yang have no fixed positions. This, the text concludes, embodies the fundamental principle of the Book of Changes.

This passage elucidates how the Zhouyi Cantongqi (The Seal of the Unity of the Three) employs the twelve hexagrams of waxing and waning (Fu, Lin, Tai, Dazhuang, Guai, Qian, Gou, Dun, Pi, Guan, Bo, and Kun) to symbolize the rhythmic patterns of alchemical fire regulation. These twelve hexagrams correspond to the monthly (or annual) progression of Yin-Yang transformations:

1. The Fu hexagram (11th month) represents the initial emergence of Yang qi, akin to the Yellow Bell pitch pipe marking the winter solstice when all things begin to stir.

2. The Lin hexagram (12th month) shows gradual Yang growth, paralleling the Great Lü pitch pipe as Yin and Yang achieve preliminary balance.

3. The Tai hexagram (1st month) manifests "three Yangs opening prosperity" — the harmonious interaction of Yin and Yang reviving all life.

4. The Dazhuang hexagram (2nd month) reflects vigorous Yang energy, symbolized by elm seeds falling during the spring equinox.

5. The Guai hexagram (3rd month) depicts Yin qi receding as Yang ascends, renewing all creation.

6. The Qian hexagram (4th month) marks the zenith of Yang's radiance illuminating all things.

7. The Gou hexagram (5th month) signals Yin's rebirth, evidenced by cooling well waters as Yang begins withdrawing.

8. The Dun hexagram (6th month) shows Yang retreating to conserve energy.

9. The Pi hexagram (7th month) represents blocked Yin-Yang interaction diminishing vitality.

10. The Guan hexagram (8th month) observes autumn's harvest while storing energy.

11. The Bo hexagram (9th month) portrays exhausted Yang qi and withering vegetation.

12. The Kun hexagram (10th month) returns to pure Yin, gestating the next cycle.

The text emphasizes that alchemical practice must follow nature's rhythms of Yin-Yang fluctuation, with each hexagram governing approximately two-and-a-half days per month (or month per year) in continuous rotation. Just as rulers govern according to celestial timing, adepts must master these alchemical fire phases. References to "Yellow Bell" and "Great Lü" derive from ancient twelve-tone pitch standards correlating with lunar months.

This scripture primarily elucidates the principles of Yin-Yang interaction and Five Phases (Wuxing) circulation in Daoist Neidan (internal alchemy) practice, along with the mysteries of human life formation.

It begins by discussing the patterns of trigram transformations, mentioning how the Xun trigram evolves into Qian, Gen, and other mutually converting configurations. However, the purported correspondences between these trigrams and musical tones or temporal cycles are largely forced interpretations that need not be taken too seriously. The author points out longstanding misinterpretations in traditional commentaries on the Book of Changes (Yijing).

The text then expounds the essential techniques for nurturing life and prolonging vitality: human life originates from primordial Qi (Yuanqi, or primal energy), with the two energies of Yin and Yang forming the dwelling places of the hun (ethereal soul) and po (corporeal soul). The Yang spirit (Yang Shen) resembles the sun and governs the hun, while the Yin spirit (Yin Shen) mirrors the moon and governs the po—these soul aspects exist in mutual dependence. Human temperament is likened to a city's structure: innate nature (Xing) establishes the foundation within like the inner keep, while emotions and desires build the outer walls. Only when inner and outer harmonize can true stability be achieved.

The crux of cultivation lies in mastering the dynamic interplay of Yin and Yang: Qian (the Yang principle) governs movement and direct progression, while Kun (the Yin principle) governs stillness and containment. Through the alchemical method of "nine returns and seven reversions, eight homecomings and six dwellings" (Neidan terminology describing the cyclical movement of Jing-essence and Qi within the body), Metal (lungs) and Fire (heart) mutually restrain each other, while Water (kidneys) and Fire mutually nourish one another, achieving Five Phases equilibrium. The text particularly emphasizes Water's virtue (De) as supremely benevolent—limpid and flawless—though the true nature of the Dao (Zhenyi, the authentic One) ultimately defies concrete description.

A metaphorical explanation follows: human formation resembles the interdependence of black and white within an egg (symbolizing Yin-Yang). After ten lunar months of gestation, birth occurs with soft bones and luminous skin. This resonates with the earlier principle of "knowing the white while guarding the black," suggesting that alchemical processes mirror the life-formation sequence. The character "qian" (lead) at the end may be a scribal error for "yi" (syrup).

The conclusion underscores the principle of Yin-Yang resonance: just as the yangsui (ancient solar igniter) requires sunlight to produce fire and the fangzhu (ancient lunar dew collector) needs moonlight to condense dew, the subtle interplay of Yin and Yang energies within the human body—though profoundly mysterious—can manifest tangible cultivation results when properly harmonized through the cooperation of heart-Fire and kidney-Water (the chest and abdominal regions).

This passage elucidates the core principles and precautions of Daoist Neidan (internal alchemy) practice.

During cultivation, one must guard the three treasures—eyes, mouth, and nose—maintaining stillness and concentration. A true practitioner should withdraw consciousness like diving into deep waters, internally preserving the spirit while circulating Qi in the Dantian (energy center) like a turning wheel axle. Inhalation and exhalation should harmonize as naturally as a rotating cartwheel. Whether in motion or stillness, Qi flows ceaselessly—the Li trigram (symbolizing fire) energy circulates within, while the Kan trigram (symbolizing water) energy remains inwardly restrained.

Practice requires few words, following the natural Dao. When these three apertures are guarded, the body relaxes into emptiness, thoughts return to nothingness, maintaining a state beyond conceptual thinking. This realm defies verbal description, demanding single-minded focus without distraction. During sleep, the Shen (spirit) remains internally collected; upon waking, one perceives life's transformations. Prolonged practice brings radiant complexion, strong bones, expulsion of Yin pathogens, and establishment of pure Yang constitution.

Uninterrupted cultivation makes Qi flow like clouds and rain, as spring nourishes earth, or ice melting smoothly. Qi descends from crown to feet, then ascends back upward in endless circulation. This cyclic movement embodies the Dao's operation, while the yielding state manifests De's (Virtue) foundation. Like weeding removes impurities, subtle adjustments bring clarity—turbidity eventually clarifies, prolonged darkness ultimately yields to light.

Yet ordinary people often chase quick minor techniques without probing the Dao's depths, abandoning the true path for deviant roads—like blind men rejecting canes, deaf men listening to music, fishing for pheasants underwater, or hunting fish-dragons on mountains. They sow wheat expecting millet harvests, using compasses to draw squares—all futile efforts. Authentic cultivation methods are profoundly simple: the sun-like original Shen (flowing pearl) scatters easily, but when united with primordial Qi (golden splendor), they coalesce into white nectar, crystallizing as the elixir. This process mirrors natural relationships—mother nourishing child, father transmitting to son. The Five Phases mutually generate and restrain—fire melts metal, metal overcomes wood. When the numbers three and five unite, they form heaven-earth's most exquisite principle, transmittable orally but ineffable in writing.

Timing and orientation matter in practice: rotate leftward during Zi hour (midnight), turn eastward at Wu hour (noon), clearly distinguishing Mao (east) and You (west) directions. The dragon (symbolizing original Shen) and tiger (symbolizing primordial Qi) resonate, attracting and merging like mutual devouring. This resembles celestial phenomena—Mars pausing in the west as Venus (Taibai) passes by—all manifestations of cosmic patterns.

This scripture primarily elucidates the principles of cultivating the elixir (both Neidan/internal alchemy and Waidan/external alchemy), employing numerous natural phenomena as metaphors:

The mutual generation and restraint in nature operate like this: When heaven exerts its austere energy, all things wither; the cat catching mice or the eagle seizing small birds follows natural law. All beings fulfill their roles—those who defy these patterns meet failure. Many exhaust their fortunes pursuing longevity yet fail because they lack true understanding.

Elixir refinement must follow the Five Phases' (Wood, Fire, Earth, Metal, Water) cycles of mutual nourishment and restraint ("the Five Phases overcoming each other yet acting as parents"). Just as a mother nurtures life ("the mother contains nourishing fluids") and a father provides vital essence ("the father governs bestowal"), the elixir too must condense essential Qi to achieve immortality ("coagulated essence flows into form, making metals and minerals incorruptible").

The text critiques erroneous cultivation methods:

• Practicing minor techniques ("petty methods") only wastes effort
• Blindly seeking rare medicinal ingredients ("extensively pursuing famous herbs") deviates from the Dao
• It's like consuming toxic plants such as wild aconite or croton seeds—one collapses immediately, beyond rescue even by King Wen's divination or Bian Que's healing arts

Key principles for proper elixir refinement:

• Master the interplay of Yin-Yang ("the union of three and five"), akin to male-female coupling creating life ("the intercourse of female and male")
• Fire naturally flames upward, water naturally moistens downward ("fire moves to blaze up, water flows to moisten down")—this is heaven-earth's intrinsic nature
• The crux lies in using "yellow sprout" (a Neidan term for primordial Qi) as foundation
• Like a hen requiring rooster fertilization to hatch complete chicks ("if coupling remains unjoined... the chicks stay incomplete"), Yin-Yang must unite or the elixir won't form

Note: "Three-five" (sanwu) is a Daoist term denoting the fusion of water-fire-metal with Yin-Yang energies; "yellow sprout" (huangya) and "charming maiden" (chanü) are metaphorical expressions for specific states or substances in Neidan practice.

This passage elucidates the principle of mutual generation and restraint between Yin and Yang, using natural phenomena like male/female and sun/moon as metaphors:

Yin and Yang are as inseparable as the union between man and woman, operating beyond human control. Just as male infants naturally sleep face down while females sleep face up—an innate characteristic present from conception that remains unchanged throughout life—this isn't taught by parents but determined during conception. The Kan trigram (representing water) symbolizes the moon and masculinity, while the Li trigram (representing fire) embodies the sun and femininity. The sun radiates energy while the moon reflects light.

When Yang Qi becomes disordered and Yin Qi overflows, celestial anomalies like solar and lunar eclipses occur. Male and female must harmonize like metal melting into liquid (water), which transforms into earth when meeting fire—demonstrating their cyclical relationship. Masculinity governs movement while femininity governs stillness; their interaction requires precise balance, just as the Hun (Yang spirit) and Po (Yin spirit) mutually regulate each other to maintain equilibrium.

The text then employs alchemical metaphors: Cinnabar requires metallic interaction, illustrating how metal generates water while wood accompanies fire. The Five Phases correspond to organs: the liver (wood, father, green), lungs (metal, mother, white), kidneys (water, child, black), and spleen (earth, ancestor, yellow). The dragon (Yang) resides west while the tiger (Yin) dwells east, mirroring natural cycles like elm trees withering in February and wheat flourishing in August—all manifestations of Yin-Yang alternation.

The conclusion emphasizes: solitary Yang cannot generate life, nor can isolated Yin foster growth. Like the entwined turtle-snake symbol (Xuanwu) or proper male-female pairing, two women together—even with legendary matchmakers like Su Qin or Zhang Yi—could never form a true marital union. This underscores that alchemical practice (Neidan) requires Yin-Yang integration, as neither pure Yin nor pure Yang can achieve the work.

(Note: Terms like "yellow sprout" [huangya] and "charming maiden" [chanü] are alchemical code for lead and mercury respectively, while "nine-one numerology" refers to the cyclical law of Yin-Yang transformation.)

This scripture passage discusses the critical importance of proper medicinal combinations in alchemical practice and the consequences of incorrect procedures.

When refining the elixir, if the types of ingredients are unsuitable or their proportions imbalanced ("discrepant measurements"), even if the Yellow Emperor (revered progenitor in Daoism) personally attended the furnace, the Supreme Unity (Taiji) deity descended to oversee, the Eight Immortals (legendary alchemists) pounded herbs, the Prince of Huainan (famous Han dynasty alchemist) tended the fire, and one stood upon a jade platform offering dried qilin meat and cured phoenix jerky while kneeling in reverence to recite invocations and fast piously to implore the gods—it would still be as futile as patching a pot with glue or treating a wound with lime. This is akin to adding ice to someone with fever or forcing hot soup on someone suffering from chills, only worsening the condition ("flying turtles and dancing snakes reveal ever greater discord").

The text mentions several key alchemical materials:

1. Cinnabar (mercury sulfide) must be combined with metal ("merging only when meeting gold").

2. The interaction between the Maiden (mercury) and Yellow Sprout (lead oxide).

3. The coordinated interplay of Dragon (mercury) and Tiger (lead) in the Zi (north) and Wu (south) positions.

Finally, it emphasizes that if the fundamental nature of the ingredients is mismatched (like the metaphor of two women being unable to conceive together), all efforts will be in vain. Through vivid contrasts, this passage illustrates that alchemy must strictly adhere to the inherent properties and combinatorial principles of its materials.

The lower volume of Zhouyi Cantongqi (The Kinship of the Three) was compiled and recorded by the scholar Huang Ruijie from Luling (modern-day Ji'an, Jiangxi). It primarily discusses the ancient wisdom of cultivating the Dao to attain immortality:

The ancient sages embraced profound truths within their hearts, transforming their physical forms through ingesting elixirs (the "Nine Cauldrons" symbolize the Golden Elixir) and refining Jing (essence) and Qi (vital energy). They nourished their Shen (spirit), harmonized the "Three Origins" (referring to the essential energies of Heaven, Earth, and Humanity), balanced bodily fluids, and strengthened tendons and bones—thereby expelling pathogenic influences and preserving upright Qi. Through prolonged accumulation, they ultimately achieved the transcendence of shedding their mortal shells to become immortals.

The author laments that later seekers of the Dao, though yearning for immortality, could only glean fragments from ancient texts, concealing fundamental principles in metaphors like "various stones" (alchemical terminology). As a result, scholars treated the true scriptures as treasures to be hoarded rather than understood, and with each passing generation, confusion deepened—officials neglected governance, farmers delayed their work, merchants abandoned their goods, and aspiring individuals fell into poverty. Distressed by this, the author resolved to reorganize these writings.

This section of the scripture has three distinctive features:

1. Concise language for ease of comprehension

2. Streamlined content without unnecessary complexity

3. Clear and logical structure

Yet the author remained wary of revealing celestial secrets, deliberately employing seemingly disordered phrasing to leave only those of genuine wisdom a path to realization ("opening the door through its apertures"). The appended verses encapsulate the essence of the entire text.

[Key Concepts Explained]

• "Disordered verses" (乱辞): Summary verses resembling the "Luan Yue" (epilogue) of Li Sao (The Lament).
• "Mystic Channel" (玄沟): Refers to the Milky Way.
• "River Drum" (河鼓): The star Altair (in the constellation Aquila).
• "Stellar Epoch" (星纪): One of the twelve celestial divisions (corresponding to the earthly branch "Chou").

The verses convey that the cosmic patterns of Heaven and Earth are the grandest of all. When the Milky Way spans the sky and Altair aligns with the Stellar Epoch (anomalous celestial phenomena), the people tremble in fear. If shadows shift erratically (calendar disorder), disasters will persist for nine years. But if the ruler reflects and corrects in time, adjusting the pivotal balance of Yin-Yang (referring to the "fire times" in cultivation or governance), calamities will dissipate. Just as the flooding of the Yangtze and Huai Rivers eventually returns to the sea—this uses water disasters as a metaphor for the imbalance of Water and Fire in practice, emphasizing the critical importance of harmonizing Yin and Yang.

This passage from the Zhouyi Cantongqi primarily discusses the transformations of Yin-Yang and symbolic descriptions of alchemical cultivation. I will explain it in sections:

Regarding the discussion of "harmful qi": Zhu Xi posits that the mentioned "mysterious channel's harmful qi" does not directly describe the human body but serves as metaphorical language. Similar to the Wang Mang Biography's phrase "harmful qi will soon dissipate" referring to natural disasters, the original text likely suffered from transcription errors—first changing from "harm" (害) to "circumference" (周), then to "solid" (固), with later editors mistakenly amending it to "essence" (精).

The operation of cosmic Yin-Yang principles:

Using "female-male" to symbolize the two qi of Yin-Yang, cycling between the Zi hour (midnight) and Wu hour (noon), Yin hour (dawn) and Shen hour (dusk). The Yin-Yang energies begin from the Fu hexagram (symbolizing Yang qi's initial emergence), circulating endlessly. Following the rotation of the Big Dipper, they hold the celestial balance to establish cosmic laws.

Symbolic descriptions of alchemical processes:

• "Ascending refinement on the mountain of vessels": Like refining elixirs over steaming mountains with raging fires below
• "White Tiger leads the way": The White Tiger (symbolizing Metal qi) guides from the front
• "Azure essence harmonizes behind": The essence of the Azure Dragon (symbolizing Wood qi) blends from behind

(Zhu Xi's textual analysis suggests "White Tiger" might alternatively be read as "realgar" (礜) or "alum" (矾), but context favors "Tiger" to correspond with the subsequent "Azure essence," symbolizing the alchemical process of Dragon-Tiger coupling and Water-Fire interaction)

Imagery of the Vermilion Bird (Zhuque):

• The five-colored Vermilion Bird soars and dances
• Suddenly trapped by restraining nets, it cries like an infant longing for its mother
• Plunged into boiling cauldrons, its plumage shattered
• Before half a watch passes (a time unit), dragon-scale ripples emerge
• Five-colored lights shimmer unpredictably, the cauldron boiling incessantly
• Resembling interlocking dog teeth or winter's icicles and stalactites
• Diverse forms accumulate as Yin-Yang energies converge here

Correspondences of the Four Symbols:

• Azure Dragon resides at 6 degrees of Fang constellation, symbolizing spring's eastern Wood qi (Zhen trigram, Mao position)
• White Tiger resides at 7 degrees of Mao constellation, symbolizing autumn's western Metal qi (Dui trigram, You position)
• Vermilion Bird resides at 2 degrees of Zhang constellation, symbolizing summer's southern Fire qi (Li trigram)

Through celestial phenomena and animal symbolism, this passage metaphorically describes the coupling transformations of Yin-Yang qi during alchemical refinement, embodying the Daoist cultivation principle of "extracting Kan to replenish Li."

This passage elucidates the essential principles and techniques for refining the Golden Elixir (Jindan). The core teachings can be summarized as follows:

The crucial factor in alchemical practice lies in the harmonious interaction of Yin and Yang energies. The celestial stems "Zi-Wu" represent Qian-Kun (Heaven-Earth), while "Yin-Shen" symbolize Kan-Li (Water-Fire). Through the cyclical processes of mutual generation and restraint—where Metal (represented by the White Tiger) generates Water, and Water extinguishes Fire (represented by the Vermilion Bird)—the elixir gradually condenses. This transformation mirrors natural processes: liquids solidify, cinnabar particles gradually dry and take form like horses' teeth.

Alchemical practice must follow natural laws. Just as mountain and marsh vapors rise to form clouds and rain, as parched earth crumbles to dust, or as extinguished flames become ashes, so too does the alchemical process unfold. These transformations resemble using phellodendron bark to dye yellow, indigo plants to produce blue, boiling leather into glue, or fermenting yeast into wine—substances naturally transform into their kindred forms.

This alchemical art is authentic and can be transmitted through generations. Like stars coursing through the Milky Way or rivers ultimately returning to the sea, practitioners must engage in repeated study and practice (a thousand or ten thousand times) to comprehend its profound mysteries. Sudden enlightenment may occur as if receiving divine revelation.

The Dao bestows its secrets impartially, revealing them only to virtuous sages. As the ancient saying goes, "Read a text a thousand times and its meaning will reveal itself." Only through persistent contemplation and dedicated practice can one master this profound path.

Note: The terms "White Tiger" (Baihu), "Azure Dragon" (Qinglong), and "Vermilion Bird" (Zhuque) are specialized terminology in Daoist alchemy, representing Metal, Water, and Fire elements respectively. The "Three-Five" (Sanwu) refers to the three elements of Fire, Metal, and Wood, all originating from Earth Qi.

This passage primarily explains the principles and methods of Neidan (internal alchemy) cultivation. Let me interpret it in modern terms:

First, it clarifies that cultivation doesn't rely on divine powers but on achieving the ultimate state of one's own Shen (spirit). The author emphasizes this isn't empty rhetoric.

Next, it discusses the Cantongqi (参同契, The Kinship of the Three) scripture, noting that while it outlines general principles, they remain incomplete. Therefore, the author aims to supplement and refine these teachings through "five correspondences" (太易, 象彼, 鄶图, 委时, etc.) to fully reveal the essential nature of "Taiyi" (the primordial state of the universe).

The text affirms the verified reliability of the Huang-Lao school (黄老之学), particularly the practical foundations of alchemical practices (炉火之事). It reveals how the Dao of Heaven, Earth, and humanity share one origin—like roots, branches, leaves, and fruit of a tree—with preservation of essence as the fundamental principle.

Using withered winter bamboo as metaphor, it advises seasonal adaptation and ruler-like restraint. The vast Dao of Heaven defies description; the realm of Taixuan (太玄) transcends form—understanding comes through silent contemplation, while misinterpretation brings self-harm.

The author modestly identifies as an ordinary man from Kuai (鄶国, possibly Wei Boyang's self-reference), disinterested in power or glory, content with simplicity. This work aims to elucidate the core teachings of the Yijing's three sages for universal harmony—applicable to statecraft and self-cultivation alike.

It emphasizes the natural Dao of Huang-Lao, advocating return to authenticity through inner realization. By holding fast to the "One" (Dao), supplementing with elixirs (while rejecting inferior minerals like Wudu's eight stones), and practicing prudently, success comes without worldly pursuits.

Finally, "the dark between moons" symbolizes the undifferentiated state of cultivation. Like elusive water, the Taixuan realm requires the "four manifestations" (四象, likely seasonal cycles) to guide later practitioners.

Zhouyi Cantongqi (Part Three) Modern Interpretation

This passage primarily discusses the path of cultivation and the essential techniques of alchemy. It begins with a metaphor: although cultivation methods may appear different (like three interconnected branches), they all originate from the same fundamental principle. The author emphasizes that these words are not empty rhetoric but contain the genuine Dao of cultivation.

Practitioners should distance themselves from the harms of worldly affairs and seek refuge in the mountains and forests (qiu shan), wandering freely within the vastness of heaven and earth. Through cultivation, one can attain the state of "transforming form into immortality" (huaxing wei xian)—though silent and seemingly dormant, they may reappear in the world even a hundred generations later. The text mentions that virtuous individuals (ji ren, those with De) who master these methods can achieve stability and longevity.

[Song of the Cauldron and Vessel]

This section details the specifications of the alchemical furnace (dingqi):

• Circular, with a circumference of san wu yi inches (a Daoist-specific measurement)
• Furnace mouth diameter of si ba liang inches
• Furnace height of two chi, with uniform thickness
• The belly of the furnace has three protrusions (qi, meaning "navel," referring to raised sections)

Key Principles of Cultivation:

1. Yin-Yang Positioning: Yin above, Yang below, in cyclical motion

2. Fire Regulation: Begin and end with wuhuo (fierce fire), using wenhuo (gentle fire) in between

3. Alchemical Materials: Substances such as huangya (another term for lead) are employed

4. Essential Practice: Utilize the body’s seven orifices (qiqiao) to aid cultivation, stabilize the spirit (li nao), and raise the primordial Qi (xuan)

The cultivation process requires long-term perseverance (shen xinqin), careful protection, and avoidance of confusion. Though the path is profound and mysterious, those who penetrate its depths can unite with heaven and earth. True Daoist practitioners must investigate the root principles, grasp the laws of the Five Phases (wuxing), and measure with precision (ding zhufen).

Final Praise and Commentary

This section evaluates the Cantongqi, noting that though its language is simple, its principles are vast. It draws parallels between the governance methods of the Five Emperors and Three Sovereigns (wudi sanhuang) and the laws of cultivation. It warns that failing to apply these methods correctly (junchen chashu, "ruler and minister misaligned") will prevent the attainment of peace (taiping), and consuming elixirs will not grant longevity. Only by deeply understanding the transformations of Yin-Yang, mastering natural patterns (riyue xianwang, the waxing and waning of the sun and moon; bagua chengxiang, the manifestation of the Eight Trigrams), and attending to details as meticulously as handling daily tasks (miyan fenpan, "sorting rice and salt") can one achieve genuine cultivation results.

The scripture emphasizes: Only by comprehending the Great Image of heaven and earth (daxiang) can one attain longevity. Those who walk this path must redouble their efforts.

This passage discusses textual annotations and research regarding the Zhouyi Cantongqi (The Seal of the Unity of the Three in Accordance with the Book of Changes), a foundational Daoist scripture. The key points can be understood as follows:

The current version of the Zhouyi Cantongqi likely contains later-added commentary prefaces, while the original annotations have been lost, leaving only the introductory sections. Zhu Xi (Master Zhu) noted that some consider this a postface, while others argue it represents the eulogistic verses of Wei Boyang (Master Wei). Judging by the content, it more closely resembles a postface to the commentary. Peng Xiao mentioned in his preface that Wei Boyang secretly transmitted the text to Xu Congshi of Qingzhou (a Daoist official title), instructing him to produce annotated commentaries. Xu concealed his true name in these annotations, which are now lost.

Composed by Wei Boyang during the Eastern Han dynasty, the Zhouyi Cantongqi adopts its chapter titles in imitation of Han-era apocryphal texts (weishu), with deliberately archaic and obscure language. Later readers, lacking sufficient learning, freely altered the text, resulting in more corruptions than found in other classical works. Current editions synthesized from multiple versions still contain unresolved discrepancies, requiring scholars to establish a definitive text based on available knowledge while preserving variant readings for reference. The attribution to "Kongtong Daoist Zou Xin" (actually Zhu Xi's pseudonym - "Zou" referencing the ancient Zhu state, with "Xin" phonetically echoing "Xi") reflects this editorial process.

Zhu Xi observed that Wei Boyang primarily used the four hexagrams Qian (Heaven), Kun (Earth), Kan (Water), and Li (Fire) to symbolize the alchemical cauldron (tuoyue), then employed the sixty hexagrams from Zhun to Meng to represent daily cultivation periods. The najia method (a hexagram-qi correspondence system) used six hexagrams to track monthly progress, while the twelve pigua (waxing/waning hexagrams) doubled this cycle. This approach meticulously detailed monthly rhythms while encompassing annual cultivation. However, later "fire phasing" (huohou) methods mechanically matched the 384 hexagram lines to celestial degrees—one line per day—even deleting four hexagrams (24 lines) to force alignment with solar terms, violating natural principles. Moreover, the original text's arrangement of yin-yang lines followed no fixed sequence, differing significantly from later systematizations.

(Note: Terms like najia [stem-embedding], pigua [waxing/waning hexagrams], and huohou [fire regulation] are Neidan (internal alchemy) technical terms referring respectively to: hexagram-stem correspondences, the twelve phase-change hexagrams, and temperature control during elixir refinement.)

This passage primarily discusses the interpretation of hexagram line calculations and cultivation timing in the Zhouyi Cantongqi (The Seal of the Unity of the Three). The main points are:

Although a single day can complete 360 celestial cycles, the truly crucial "one Qi" (the pivotal moment for cultivation) corresponds to just one yao (hexagram line). The author suggests that the drastic fluctuations of the twenty-four solar terms lack the natural rhythm of cyclical alternation, suspecting these might be later additions rather than reflecting Wei Boyang's (the text's author) original intent.

The core of this text lies in understanding the two characters "Kan-Li" (symbolizing water and fire, yin and yang). By grasping this fundamental principle, even without Wei Boyang explicitly detailing cultivation methods, practitioners can independently discern the proper timing for advancement or withdrawal during morning and evening practices, without rigid adherence to traditional interpretations. The author proposes a method for calculating numerical tallies (ce), acknowledging that while the yao counting method wasn't originally from Wei Boyang, it remains reasonably valid.

The specific method involves assigning twelve hexagrams to each month, with each hexagram governing two and a half days. From the Guan hexagram in the eighth month to the Tai hexagram in the first month, yang lines use the lesser yin count of 28 tallies while yin lines use the greater yin count of 24 tallies. The opposite applies from the Dazhuang hexagram in the fourth month to the Pi hexagram in the seventh month. Yang symbolizes focused operation, while yin represents relaxed stillness. Each yao represents one cycle of yin-yang opening and closing in Qi movement. The twelve-hexagram cycle completes one month of cultivation practice, and twelve months form a complete annual cycle.

The passage concludes by noting Zhu Xi's (Master Zhu) particular reverence for the Cantongqi. It suggests that Shao Yong's Yijing studies derived from Chen Tuan (Master Xiyi), whose teachings ultimately trace back to the Cantongqi. While Zhu Xi maintained cautious skepticism toward other Yijing commentaries, his unquestioning acceptance of the Cantongqi demonstrates its exceptional status.

(Note: Ce refers to bamboo counting rods used in ancient divination; yao are the fundamental yin-yang components of hexagrams; in Daoist Neidan (internal alchemy), Kan-Li represent the kidney water and heart fire, or the essential alchemical elements of lead and mercury.)

This passage records Zhu Xi (reverently referred to as "the Master") and his disciple Cai Yuanding (courtesy name Jitong) jointly studying the Zhouyi Cantongqi (The Kinship of the Three).

At that time, though they had grasped the general framework of this alchemical classic ("understood its overall meaning clearly"), they still hadn't discovered the concrete cultivation methods ("found the starting point"). It wasn't until the Ding-Si year of Qingyuan era (1197) that they truly discerned the approach ("began to identify the thread"), yet still hadn't fully mastered its essential techniques ("failed to grasp the precise material and crucial points").

Later, when Cai Yuanding was demoted to Daozhou, the teacher and disciple spent a sleepless night at the Cold Spring Retreat meticulously collating the Cantongqi ("remained awake till dawn"). The text reflects that even amid political turmoil ("adversity"), they remained devoted to studying this classic, demonstrating their resolute transcendence of worldly concerns ("their determination to cast aside mundane affairs was firm").

Regrettably, Cai Yuanding passed away the following year before Zhu Xi could discuss with him the "method of stalk divination" (a numerical calculation technique for prognostication). Two years later, Zhu Xi also departed. However, through their textual research, these two classics—Cantongqi and Yinfujing—were confirmed to align with Confucian sagehood ("not contrary to the Way of the Sages"), and were thus incorporated into the Diagrammatic Explanations of the Supreme Ultimate and Primordial Origins series.

Note: The "method of stalk divination" refers to the Yijing divination technique using milfoil stalks; "casting aside like sandals" alludes to the Zhuangzi, metaphorically depicting the effortless abandonment of worldly fame and gain as though removing shoes.