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Chapter 12 of 16
奇经八脉考
Holistic Interpretation
The Governing Vessel is the Sea of Yang Meridians (the general convergence point of all yang channels in the body). Its course of circulation is as follows:
The meridian qi originates from beneath the kidneys in the uterine cavity (the dantian region below the kidneys in the lower abdomen), reaches the lower abdomen, then descends to the center of the transverse bone of the waist (pubic symphysis), connecting to the tip of the urinary orifice (external urethral opening). In men, it descends along the penis to the perineum (huiyin region); in women, it connects with the genitalia and converges at the perineum. Both then bypass behind the perineum and reach Pingyi point (between the anterior and posterior yin, i.e., the perineum). From there, a branch diverges, encircling the buttocks, merging with the Shaoyin channel, converging at the middle collateral of the Taiyang channel, then ascending along the medial thigh together with the Shaoyin channel, passing through Huiyang point (beside the coccyx, two points in total). It pierces through the spine and merges with the Shaoyin channel at Changqiang point (at the sacral tip). Then it ascends along the interior of the spine, sequentially passing through: Yaoshu (below the 21st vertebra), Yangguan (below the 16th vertebra), Mingmen (below the 14th vertebra), Xuanshu (below the 13th vertebra), Jizhong (below the 11th vertebra), Zhongshu (below the 10th vertebra), Jinsuo (below the 9th vertebra), Zhiyang (below the 7th vertebra), Lingtai (below the 6th vertebra), Chongdao (below the 5th vertebra), Shenzhu (below the 3rd vertebra), Taodao (below Dazhui), and Dazhui (below the 1st vertebra), where it converges with the three yang channels of the hand and foot.
Continuing upward to Yamen (five fen within the posterior hairline of the neck), it intersects with the Yangwei Meridian and connects internally to the root of the tongue. Ascending to Fengfu (one cun within the posterior hairline of the neck, in the depression between the large sinews), it enters the brain together with the Foot Taiyang channel and the Yangwei Meridian. Along Naohu (on the occipital bone), Qiangjian (three cun behind Baihui), and Houding (one and a half cun behind Baihui), it ascends to the vertex, passing through Baihui (in the center of the whorl of hair at the top of the head), Qianding (one and a half cun anterior to Baihui), Xinhui (three cun anterior to Baihui, i.e., the fontanelle), and Shangxing (one cun anterior to Xinhui), reaching Shenting (two cun anterior to Xinhui, directly above the nose, five fen within the hairline), which is the intersection point of the Foot Taiyang channel and the Governing Vessel. It then descends along the center of the forehead to the nasal pillar, passing through Suliao (the tip of the nose) and Shuigou (the philtrum), where it converges with the hand and foot Yangming channels, reaching Duiduan (the upper tip of the upper lip). Finally, it enters Yinjiao (in the gap between the upper teeth), converging with the Ren Meridian and Foot Yangming channel before terminating. In total, there are thirty-one points.
The luo-connecting branch of the Governing Vessel, diverging from Changqiang toward the Ren Meridian, follows this route: ascending directly from the lower abdomen, piercing through the center of the navel, ascending to penetrate the heart, entering the throat, ascending to the lower jaw, encircling the lips, ascending to connect with the center beneath both eyes, and converging with the Taiyang channel at Jingming point at the inner canthus (see the chapter on the Yin Qiao Meridian). Ascending to the forehead, it converges with the Foot Jueyin channel at the vertex, entering to connect with the brain. Another branch descends from the brain to the nape, running along the scapulae, converging with the hand and foot Taiyang and Shaoyang channels at Dazhu point (beside the 1st vertebra, one and a half cun lateral to the midline, in the depression). Turning inward to flank the spine, it reaches the lower back, following the lu (paraspinal muscles) to connect internally with the kidneys.
The Nanjing (Classic of Difficulties) states: The Governing Vessel and the Ren Meridian are each four chi and five cun long, totaling nine chi. The Lingshu Jing (Spiritual Pivot) states: The vessel at the center of the neck is the Governing Vessel, with its point named Fengfu.
Zhang Jiegu said: "Du" (Governing) means "to oversee," as it is the general command of the yang meridians; "Ren" means "to nourish," as it is responsible for nourishing the yin meridians.
Wang Haicang said: The Yin Qiao and Yang Qiao vessels both arise from the heel center, connected as a qi well; the Ren and Du meridians both arise from below Zhongji, joined like a water channel.
Hua Boren said: The Ren and Du meridians share a single origin but divide into two branches. One runs along the front of the body, the other along the back. The human body's Ren and Du are like heaven and earth's meridian lines; they can be viewed separately or together. Viewed separately, one sees that yin and yang do not separate from each other; viewed together, they form an undifferentiated unity—one and yet two, two and yet one.
Li Binhu (Li Shizhen) said: The Ren and Du meridians are the meridian line of the human body, the pathway for the ascending and descending of the yang fire and yin talisman (the circulation path of ascending yang qi and descending yin qi in internal alchemy practice), and the place where kan water and li fire (kidney water and heart fire) intersect. Thus Wei Boyang's Cantong Qi (The Seal of the Unity of the Three) states: "When the upper is closed, it is called existence; when the lower is closed, it is called non-existence. Non-existence serves to honor the upper, where divine virtue resides. These two orifice techniques require the mutual need of metal and qi." Cui Xifan's Tianyuan Ruyao Jing (Mirror of the Elixir of Heaven's Origin) states: "Upper magpie bridge, lower magpie bridge; heaven responds with stars, earth responds with tides. Returning to the root orifice, restoring the life gate; penetrating the tailbone, connecting to the mud ball (crown)." The Dadao Sanzhang Zhizhi (Direct Indications of the Great Dao in Three Chapters) states: "Practitioners of elixir cultivation have a single aperture in the body called Xuanpin. It is located precisely below Qian (heaven), above Kun (earth), west of Zhen, east of Dui—the place where Kan and Li intersect; at the very center of the human body's heaven and earth, where the eight meridians, nine orifices, twelve channels, and fifteen collaterals converge, with a hollow space suspended like a millet pearl. Medical texts call these the Ren and Du meridians—this is where primordial qi is born and where true respiration arises. Practitioners of elixir cultivation who do not understand this aperture will have no true respiration and no foundation for spiritual transformation." Yu Yan's commentary on the Cantong Qi states: "The blood and qi of the human body circulate endlessly, day and night without pause. Medical texts speak of the Ren and Du meridians; if a person can penetrate these two meridians, then all hundred meridians will open. The Huangting Jing states: 'All are transported within the heart along the Heavenly Meridian; retaining them day and night naturally brings longevity.' The Heavenly Meridian is the yellow pathway (ecliptic) of the body, where respiration comes and goes. The deer's ability to transport through its tailbone opens the Du meridian; the tortoise's nasal breathing opens the Ren meridian—this is why both creatures are long-lived. All these statements embody the exquisite principle of the alchemical River Chariot (the circulation of essential qi along the Ren and Du meridians in internal alchemy). As for the drugs and fire phases, these are separately transmitted."
Wang Haicang said: Zhang Pingshu stated that lead is the orthodox qi of the north, a single point of nascent true yang, the mother of elixir refinement. Its creature is the tortoise, corresponding to the two yin lines of the Kan hexagram, serving as the earth's axis; its single yang line is the serpent, representing the root of heaven. Yang qi is born at the zi hour, stored in Mingmen, with primordial qi tethered to and moving through this point. Its function manifests below the navel as the root of heaven and earth, the gate of Xuanpin, connecting to the Jueyin channel, dividing into three branches as the three carts. When one thought is improper, it descends and becomes leakage; when one thought is correct, it is guarded and becomes lead. Ascending to connect with li fire, it nourishes to complete the qian hexagram. Yin returns to yang transformation, thus returning to the origin. In utmost emptiness and stillness, following the Dao naturally, one ascends as an immortal.
The Governing Vessel's core positioning is the "Sea of Yang Meridians." This meridian runs along the posterior midline of the body, ascending from the perineum along the spine to the crown of the head, then descending forward along the face. It governs and unites all the yang meridians of the body (the three hand yang, three foot yang, as well as Yangwei and Yangqiao), gathering and integrating the yang qi of the entire body, serving as the general command line for all yang qi.
The core academic thought of this passage can be summarized in three layers:
First, precise localization of the course. Li Shizhen annotated all thirty-one points of the Governing Vessel from origin to termination, clearly establishing its intersections with various meridians. This route runs along the "spine—brain—vertex—facial midline," the most central structure of the human axis, coinciding remarkably with the distribution of the human central nervous system (spinal cord—brainstem—cerebral cortex).
Second, the shared origin of Ren and Du, the unity of yin and yang. Hua Boren's famous saying "one source, two branches" is extremely insightful: the Ren Meridian runs along the front of the body (belonging to yin), while the Governing Vessel runs along the back (belonging to yang), yet both arise from the uterine cavity (where Ren and Du intersect in the lower abdomen), connected end to end to form a circular circuit. This embodies TCM's most advanced dialectical view—yin and yang are not opposing dualities, but two manifestations of the same underlying reality. The six characters "can be viewed separately, can be viewed together" encapsulates the TCM way of seeing the world: viewed separately, one perceives the inseparability of yin and yang; viewed together, one perceives the undifferentiated totality.
Third, the integration of medicine and alchemical practice. Li Shizhen explicitly defines the Ren and Du meridians as the "meridian line of the human body," and cites alchemical classics such as the Cantong Qi and Huangting Jing, indicating that the Ren-Du circulation (River Chariot operation) is the core pathway of internal alchemy cultivation. Here lies an important academic judgment—in TCM's view, the meridian system is not merely a pathway for acupuncture treatment, but also a conduit for the body's internal energy (primordial qi), with medicine and alchemical practice sharing the same body model. The tailbone's connection to the Du meridian, the mud ball (crown) housing spirit, and the magpie bridges connecting Ren and Du are all landmarks on the same map of the human body.
From a modern anatomical perspective, the course of the Governing Vessel closely corresponds to the central nervous system (spinal cord, medulla oblongata, brainstem, cerebral cortex) and the anatomical position of the spine. The points along its route roughly correspond to the distribution areas of spinal nerve roots and trigeminal nerve branches of the head and face. This posterior midline is indeed the most important neural information transmission pathway in the human body.
The "sea" in "Sea of Yang Meridians," in modern language, is similar to a master hub/trunk line concept. Along both sides of the spine are distributed nearly all the major nerve entry and exit pathways of the body. In this sense, the Governing Vessel's positioning as a "central circuit" has an anatomical basis. Modern medicine's understanding of the importance of the "spine-brain axis" is deepening, coinciding remarkably with the ancients' classification of this line as the "Sea of Yang Meridians."
Regarding the alchemical expression "opening the Du meridian opens all hundred meridians": This belongs to the theoretical discourse of traditional internal alchemy practice, not within the scope of verifiable modern medicine. From the perspective of exercise science, spinal flexibility and mobility do significantly influence overall bodily function; from a neuroscience perspective, practices such as regulating breathing rhythm and focused attention can affect the autonomic nervous system. However, concepts like "River Chariot operation" and "Kan-Li intersection" belong to cultivation language within the traditional cultural domain and should be understood primarily as cultural concepts, not subjected to modern biological correspondence.
It should be honestly noted: The descriptions of the Ren and Du meridians in Daoist alchemical methods (such as the qi-circulation experience of "penetrating the tailbone, connecting to the mud ball") are consistent with traditional medical texts in terms of meridian pathways and point locations, but their goals of "cultivating immortality" and "ascending as immortals" belong to religious/philosophical pursuits, not medical categories. Reading them as medical claims is over-interpretation; dismissing them entirely would ignore the value of traditional culture. A reasonable attitude is: medicine belongs to medicine, alchemy belongs to alchemy—they share historical origins and theoretical overlap, but differ in goals and methods.
From this text on Governing Vessel theory, several non-therapeutic insights applicable to daily life can be extracted:
Spinal care and yang qi flow: The Governing Vessel runs along the back, and the ancients emphasized that "yang qi, when refined, nourishes the spirit; when gentle, nourishes the sinews." Regularly maintaining spinal mobility and relaxation (such as regular stretching, tai chi, baduanjin, and other gentle exercises) helps maintain bodily flexibility and mental clarity. This is general fitness advice, not directed at any specific condition.
Daily rhythm and yang qi cycles: The text mentions that "yang is born at the zi hour," emphasizing the circadian rhythm of yang qi. Following the natural rhythm of "rise with the sun, rest with the sun" and avoiding chronic sleep deprivation helps maintain the stability of the body's overall circadian rhythm.
Breathing and midline awareness: Yu Yan's commentary mentions that "the Heavenly Meridian is the yellow pathway of our body, where respiration comes and goes," suggesting a relationship between breathing and the body's central axis. In meditation, contemplation, or gentle exercise, consciously relaxing the spine and making the breath even and deep is a traditional method of psychosomatic regulation, sharing common ground with modern relaxation training.
"Right mindfulness" and psychosomatic management: Wang Haicang, quoting Zhang Pingshu, states that "one improper thought descends and becomes leakage; one correct thought is guarded and becomes lead," emphasizing the influence of mental focus versus dispersion on bodily states. This can be understood as a traditional form of attention management: conscious, focused mental states contribute to physical and mental stability. This shares conceptual common ground with mindfulness practice in modern psychology.
Associated Concepts:
Further Reading:
This content is based on classical Chinese medicine texts and is provided solely for traditional cultural study and research. It does not constitute any medical diagnosis, medication, or treatment advice. If you experience discomfort, please consult a healthcare professional promptly.