The Third Chapter: Host and Guest Qi of the Six Qi
Overall Interpretation
This chapter explains how to distinguish the Host Qi (主气) and Guest Qi (客气) of the Six Qi—the six climatic energies of wind, cold, summer heat, dampness, dryness, and fire—within the Yunqi (Five Movements and Six Qi) doctrine of Chinese medicine, as well as their disease-causing patterns.
Basic Distinction Between Host Qi and Guest Qi:
The ancients divided the year into six time segments (each approximately sixty days), known as the Six Steps of Qi (六步气). The Six Qi circulate in a fixed sequence, unchanging year after year; this is called the Host Qi (主气)—like a fixed "seasonal background color" 🌿. Its order is: Jueyin Wind-Wood → Shaoyin Sovereign Fire → Shaoyang Ministerial Fire → Taiyin Damp-Earth → Yangming Dry-Metal → Taiyang Cold-Water, then back to Jueyin.
The Guest Qi (客气), by contrast, rotates year by year; each year the arrangement of the six steps differs, like "flowing visitors" 💨. Its order is: Jueyin → Shaoyin → Taiyin → Shaoyang → Yangming → Taiyang, then back to Jueyin.
Time Nodes:
The starting times of the six steps are: the initial qi begins at Great Cold (大寒) 🌊; the second qi at the Spring Equinox (春分); the third qi at Grain Full (小满) 🔥; the fourth qi at Great Heat (大暑); the fifth qi at the Autumn Equinox (秋分); and the terminal qi at Minor Snow (小雪), ending at Great Cold. The Host and Guest Qi share the same beginning and ending times for each step; the difference lies in the "nature" (which qi it is) of each step, offset by approximately thirty degrees (i.e., half a step's duration).
Sitian (Heaven-in-Charge) and Zaiqian (Earth-Below):
Sitian (司天) and Zaiqian (在泉) are two core concepts within the Guest Qi system. Sitian refers to the qi located in the third step (approximately the summer period) of the Guest Qi, governing the first half of the year; Zaiqian refers to the qi located in the sixth step (approximately the winter period), governing the second half of the year 🌊.
For example: in Zi-Wu years (Rat year, Horse year), Shaoyin governs Sitian and Yangming governs Zaiqian. The six steps of Guest Qi are arranged in sequence: initial qi Taiyang → second qi Jueyin → third qi Shaoyin (Sitian) → fourth qi Taiyin → fifth qi Shaoyang → terminal qi Yangming (Zaiqian). Similarly: in Mao-You years, Yangming is Sitian and Shaoyin is Zaiqian; in Chen-Xu years, Taiyang is Sitian and Taiyin is Zaiqian; in Chou-Wei years, Taiyin is Sitian and Taiyang is Zaiqian; in Yin-Shen years, Shaoyang is Sitian and Jueyin is Zaiqian; in Si-Hai years, Jueyin is Sitian and Shaoyang is Zaiqian.
Disease Manifestations of Host and Guest Victory/Revenge:
When Guest Qi interacts with Host Qi, different disease patterns of Host Victory (主胜) and Guest Victory (客胜) arise.
When the Six Qi occupy Sitian:
- Jueyin Sitian: If the Host Qi prevails, there is chest and hypochondriac pain, difficulty speaking; if the Guest Qi prevails, there is tinnitus, limb trembling and dizziness, and in severe cases coughing with qi counterflow 🌿.
- Shaoyin Sitian: If the Host Qi prevails, there is heart heat, irritability, hypochondriac pain and fullness; if the Guest Qi prevails, there is nasal congestion and sneezing, stiff neck, stuffiness and heat in the shoulders and back, headache, shortness of breath, fever, deafness, blurred vision, and in severe cases edema of the dorsum of the feet, bleeding, sores and ulcers, loss of voice, wheezing and coughing 🔥.
- Taiyin Sitian: If the Host Qi prevails, there is distension and fullness in the chest and abdomen, stuffiness after eating; if the Guest Qi prevails, there is swelling of the head, face, and feet, and wheezing dyspnea.
- Shaoyang Sitian: If the Host Qi prevails, there is chest fullness, coughing with counterflow, head thrown back to breathe, and in severe cases bleeding and heat in the palms; if the Guest Qi prevails, there is skin rashes, sores and ulcers, vomiting with counterflow, throat obstruction, headache, throat swelling, deafness, bleeding, and internally convulsions and spasms 🔥.
- Yangming Sitian: If the Host Qi prevails, cool and clear qi accumulates internally, causing cough, nosebleed, throat blockage, heat in the chest and diaphragm; if coughing does not stop and white froth with blood is expectorated, the prognosis is critical (Metal resides in the Shaoyang position; Guest cannot overcome Host).
- Taiyang Sitian: If the Host Qi prevails, there is phlegm rumbling in the throat; if the Guest Qi prevails, there is discomfort in the chest, thin nasal discharge, and coughing upon exposure to cold.
When the Six Qi occupy Zaiqian:
- Jueyin Zaiqian: If the Host Qi prevails, there is shaking of sinews and bones, frequent pain in the lower back and abdomen; if the Guest Qi prevails, there is joint discomfort, internally stiffness and spasms, externally difficulty in movement.
- Shaoyin Zaiqian: If the Host Qi prevails, counterflow qi ascends, heart pain with fever, attacks of bi-Obstruction pain in the diaphragm, discomfort in the hypochondria, unstable sweating, cold extremities; if the Guest Qi prevails, there is low back pain, soreness, heat, and stuffiness in the buttocks, thighs, knees, lower legs, and feet, foot swelling with inability to stand for long, and abnormal urination and defecation.
- Taiyin Zaiqian: If the Host Qi prevails, cold qi counterflows upward, abdominal distension, inability to ingest food, and in severe cases hernia; if the Guest Qi prevails, there is wilting of the feet, swelling of the lower limbs, urinary and fecal incontinence, dampness lodging in the lower burner, giving rise to watery diarrhea, yin swelling, and hidden/genital disorders.
- Shaoyang Zaiqian: If the Host Qi prevails, heat qi rushes upward to attack the heart, heart pain with fever, and vomiting due to gripping obstruction in the middle burner; if the Guest Qi prevails, there is low back and abdominal pain with aversion to cold, and in severe cases white urine and white discharge.
- Yangming Zaiqian: If the Host Qi prevails, there is heavy lower back, abdominal pain, cold in the lower abdomen, loose stools with diarrhea, cold counterflow of qi in the intestines rising to attack the chest, and in severe cases wheezing and fullness, inability to stand for long; if the Guest Qi prevails, clear and cold qi moves downward, the lower abdomen becomes hard and distended, with frequent diarrhea.
- Taiyang Zaiqian: Water resides in the Water position, so there is nothing that can overcome it; hence no victory/revenge disease patterns occur.
Disease Patterns of Victory Qi (Sheng Qi) and Revenge Qi (Fu Qi):
Where there is victory, there must be revenge—when one qi becomes excessive, another qi will inevitably come to retaliate and restrain it. Without victory, there is no revenge.
- Jueyin Victory: Tinnitus, dizziness, irritability with nausea, stomach and diaphragm feeling cold, hypochondriac qi accumulating and transforming into heat, yellow and reddish urine, pain in the stomach duct region radiating to the hypochondria, borborygmus, diarrhea with undigested food, lower abdominal pain, diarrhea with red and white discharge, and in severe cases vomiting and diaphragm blockage. Its Revenge: Hard distension of the lower abdomen, acute pain with tenesmus, deceptive heart pain (Juexin Tong), sweating, vomiting, inability to ingest food, food re-entering then exiting, shaking and dizziness of sinews and bones, cold extremities, and in severe cases entering the Spleen, manifesting as food obstruction with vomiting.
- Shaoyin Victory: Heat below the heart, easy hunger, qi movement below the umbilicus, qi wandering through the Triple Burner, vomiting, restlessness and irritability, abdominal fullness with pain, loose stools with red and white discharge. Its Revenge: Internal heat with restlessness, irritability, nasal congestion and sneezing, colicky pain in the lower abdomen, dry throat, qi moving from the upper left toward the right, coughing with skin pain, sudden loss of voice, heart pain, clouded consciousness with loss of awareness, aversion to cold with shivering, delirium, cold followed by heat, thirst with desire to drink water, shortness of qi, bone wilting, difficulty with urination and defecation, edema, hiccups and belching, skin rashes, sores and ulcers, carbuncles, furuncles, acne, and hemorrhoids, and in severe cases entering the Lung, manifesting as coughing with turbid nasal discharge.
- Taiyin Victory: Fire qi stagnates internally, causing sores and ulcers to break out internally and externally; the disease lies in the hypochondria, and in severe cases heart pain with heat obstruction, headache, throat obstruction, and neck stiffness; alternatively, dampness may stagnate internally, cold may press on the lower burner, causing lower abdominal distension and fullness, lumbar and spinal pain with stiffness, diarrhea, dampness below the feet, heavy head, swelling of the dorsum of the feet and lower legs, fluid retention developing in the middle burner, and edema above. Its Revenge: Heavy body, abdominal fullness and distension, inability to digest food, yin cold qi ascending in counterflow, chest discomfort, internal fluid retention, coughing and wheezing with sound, heavy pain in the head and neck, limb shaking and twitching severe, vomiting with silence, spitting clear fluids, and in severe cases entering the Kidney with profuse diarrhea.
- Shaoyang Victory: Heat pathogen lodging in the stomach, heart irritability with pain, red eyes, vomiting sour substances, easy hunger, ear pain, reddish urine, easy fright with delirium, sudden heat withering body fluids, lower abdominal pain, and diarrhea with red and white discharge. Its Revenge: Dry and withered skin, vexing heat, palpitations and convulsions, coughing, nosebleed, heart heat, irritability, frequent urination, aversion to wind, counterflow qi ascending, complexion like dust, eye twitching and spasms, fire qi erupting internally, oral and lingual erosion, vomiting with counterflow, bleeding, blood in stool, development of malaria, aversion to cold with shivering, extreme cold followed by heat, scorched throat, thirst with desire to drink water, yellow-red complexion, shortness of qi, lung wilting, internal water accumulation, spreading to foot edema, and in severe cases entering the Lung, manifesting as coughing with bleeding.
- Yangming Victory: Clear and cool qi arising internally, left hypochondriac pain, loose stools, throat obstruction, external hernia, chest discomfort, throat discomfort with coughing. Its Revenge: Disease in the hypochondria, qi returning to the left, frequent sighing; in severe cases heart pain with distension and fullness, abdominal distension with diarrhea, vomiting bitter substances, coughing and hiccupping with heart irritability, disease in the diaphragm; in severe cases entering the Liver, manifesting as fright, and sinew and vessel spasms.
- Taiyang Victory: Hemorrhoids, malaria, cold episodes, cold entering the stomach causing cold pain in the heart, sores on the genitals, difficulty with hidden/genital functions, pulling tightness of the muscles of the yin and thighs, blood vessel congealing and astringing, collateral vessels distended with blood changes, or bleeding, skin numbness and swelling, abdominal fullness that sometimes reduces, heat qi rushing upward, pain at the crown, fontanel, and brain gate, eyes feeling as if they will protrude, cold entering the lower burner transmitting to watery diarrhea. Its Revenge: Cold arising in the heart and stomach, chest and diaphragm discomfort, heart pain with distension and fullness, headache, easy sadness, frequent dizziness and sudden falls, reduced food intake, lumbar spine pain in reverse, difficulty with flexion and extension, the lower abdomen pulling the testicles and connecting to the lumbar spine rushing to the heart, spitting clear water, hiccups and belching, and in severe cases entering the Heart, manifesting as amnesia and easy sadness; if cold revenge remains internally excessive, there is pain in the lower back and buttocks, difficulty with flexion and extension, and pain in the thighs, shins, feet, and knees.
The Relationship Between the Five Movements and Six Qi:
Merely knowing the Six Qi is insufficient without understanding the Five Movements (五运)—the annual movement changes of Wood, Fire, Earth, Metal, and Water. For instance, in a year when Taiyang governs Sitian, if it coincides with a Jia-Yi year (Earth movement), Earth can overcome Water, and the Taiyang Cold-Water will be unable to maintain its proper position. Similarly, Jueyin Sitian in a Yi-Geng year (Metal movement — Metal overcomes Wood), Shaoyin or Shaoyang Sitian in a Bing-Xin year (Water movement — Water overcomes Fire), Taiyin Sitian in a Ding-Ren year (Wood movement — Wood overcomes Earth), and Yangming Sitian in a Wu-Gui year (Fire movement — Fire overcomes Metal)—all these are cases of mutual engendering and overcoming between the movements and qi 💨.
Therapeutic Principles:
Wind, cold, summer heat, dampness, and dryness are each treated according to their respective qi; those with false appearances are treated by opposite methods; those with exuberant pathogens are treated by following them (congruent treatment, 从治); those with mild pathogens are treated by opposing them (contrary treatment, 逆治). Appropriate methods should be adopted, and confusion must be avoided 🩺.
🧠 Deep Understanding
Core Medical Principles 💡
This text systematically elaborates the core framework of "Six Qi Host and Guest" within the Yunqi doctrine of Chinese medicine. The core medical principles are:
1. The dual structure of Host Qi and Guest Qi. Host Qi represents the fixed rhythm of the six-step climate throughout the year—it is the "constant" (常); Guest Qi represents superimposed factors that rotate yearly—it is the "variable" (变). The two combine to constitute the actual climatic picture of a particular step in a specific year. This embodies the fundamental mode of thinking in Chinese medicine of "knowing the constant and understanding the variable" (知常达变)—one must grasp the regular patterns while also paying attention to each year's specific variations.
2. The spatiotemporal positioning of Sitian and Zaiqian. Sitian governs the first half of the year, Zaiqian governs the second half—grasping the year's entire qi transformation pattern along the "above/below" dimension. This division reflects the ancient people's way of understanding the overall trend of annual climate: the first half tends toward yang ascent, the second half toward yin descent.
3. The Victory-Revenge theory. "Where there is victory, there must be revenge" is the most distinctive academic concept of this chapter. When one qi is excessive, it inevitably triggers the retaliatory restraint of the qi that overcomes it, restoring balance. This is essentially the reflection of Five Phase engendering and overcoming regulation (五行生克制化) at the climatic level—the natural system possesses a tendency toward self-correction. The Victory Qi is the cause of disease; the Revenge Qi is both an ongoing pathological cause and a manifestation of the system's self-regulation.
4. The integration of Five Movements and Six Qi. The text concludes by emphasizing that knowing only the Six Qi without the Five Movements is incomplete. The Five Movements (annual movement determined by the Heavenly Stem) and the Six Qi (Sitian determined by the Earthly Branch) also have Five Phase engendering/overcoming relationships; when the annual movement overcomes the Sitian qi, the normal function of that year's Sitian qi will be suppressed. This reflects the holistic view within Yunqi doctrine in which "Movement" (运) and "Qi" (气) mutually constrain each other.
Modern Perspective 🌟
What can be corroborated: The time divisions of the Six Qi—initial qi beginning at Great Cold, each step approximately sixty days—have a rough correspondence to modern meteorological seasonal divisions. The six steps roughly correspond to: Great Cold to Spring Equinox (late winter to early spring), Spring Equinox to Grain Full (spring), Grain Full to Great Heat (early summer), Great Heat to Autumn Equinox (high summer to early autumn), Autumn Equinox to Minor Snow (autumn), Minor Snow to Great Cold (winter). This division reflects the ancients' empirical observation of climatic rhythms.
Historical limitations: The extensive list of disease patterns in the victory/revenge discussion is essentially an analogical extrapolation of climatic characteristics to disease manifestations. For example, "Jueyin Sitian with Host Victory manifests as chest and hypochondriac pain"—Jueyin belongs to Wood and governs wind; its channels course through the flanks; hence chest and hypochondriac pain is deduced. This reasoning system is internally self-consistent but does not rest on modern pathophysiological evidence. Its value lies in providing a framework for observing the relationship between disease and seasonal climate, not as precise causal law.
Rational attitude: The concepts of "Host Qi," "Guest Qi," and "Victory/Revenge" in Yunqi doctrine are, at their root, the ancients' attempt—absent modern meteorological and epidemiological tools—to build a "climate–disease correlation model." Viewed today, it functions more as a macroscopic, qualitative, philosophical tool of thought than a verifiable scientific theory. Its genuine value may not lie in predicting specific diseases but in reminding us: abnormal climatic variations do affect human health—a direction consistent with modern epidemiological research on seasonal diseases.
Health Cultivation Insights ⚡
The health cultivation value of this chapter is chiefly expressed at the level of general life wisdom, and does not target any specific disease:
- Follow the rhythm of the four seasons: Each of the Six Qi has its governorship. As part of nature, human daily rhythms should adjust with the seasonal nodes. For example, although temperatures remain low after Great Cold, yang qi has already begun to stir; at this time, one should protect nascent yang and avoid excessive depletion.
- Heed climatic anomalies: When a season's climate is notably overheated, overcooled, overdamp, or overdry (i.e., a "Victory Qi"), one should consciously adjust one's life to buffer that bias. For instance, during seasons of dampness excess, keep one's residence dry and well-ventilated 🌿.
- Moderation and balance in diet: The core idea of the Five Movements and Six Qi is balance—any qi in excess will trigger the "Revenge Qi" as correction. This reminds us to maintain a balanced intake of the five flavors in daily diets rather than chronically favoring any single taste.
- Calm the emotions: The text describes many emotional/chronic patterns of suffering (irritability, easy sadness, easy fright), suggesting that emotional extremes can also be considered an internal "Victory Qi" requiring resolution through equanimity.
📚 Related Knowledge
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Associated Concepts:
- Five Movements and Six Qi (五运六气): The comprehensive prognostic system formed by the Five Movements (annual movements of Wood, Fire, Earth, Metal, Water over five-year cycles) and the Six Qi (wind, cold, summer heat, dampness, dryness, fire)
- Sitian and Zaiqian: The third step of Guest Qi is Sitian (governing the first half of the year); the sixth step is Zaiqian (governing the second half)
- Victory and Revenge Qi: One qi's excess is the "Victory Qi"; the qi that overcomes it and comes to restrain it is the "Revenge Qi"
- Six Steps of Qi: The year divided into six parts, each approximately sixty days plus remainder, beginning at Great Cold
- Orthogonal Transformation vs. Opposite Transformation (正化与对化): The correspondence between Sitian and Zaiqian (Zi-Wu with Shaoyin Sitian, Yangming Zaiqian—mutually exterior-interior paired)
- Annual Movement (岁运): Determined by the year's Heavenly Stem; Jia-Yi are Earth, Yi-Geng are Metal, Bing-Xin are Water, Ding-Ren are Wood, Wu-Gui are Fire
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Further Reading:
- Chapters of the Huangdi Neijing·Suwen: "Tianyuanji Da Lun," "Wuyunxing Da Lun," "Liuweizhi Da Lun," "Qijiaobian Da Lun," "Wuchangzheng Da Lun," "Liuyuanzhengji Da Lun," "Zhizhenyao Da Lun"—the seven core treatises of the Yunqi doctrine
- "Cifa Lun" and "Benbing Lun" of the Huangdi Neijing·Suwen—anomalies in the Yunqi and needling methods
- "Shanghan Li" of the Shanghan Zabing Lun—the relationship of the four seasons and twenty-four solar terms to disease onset
- Wenbing Tiaobian—the application of Yunqi doctrine to warm disease differentiation and treatment
This content is based on classical Chinese medical texts and is intended solely for traditional cultural learning and study. It does not constitute any form of medical diagnosis, medication, or treatment advice; if you feel unwell, please seek medical attention promptly.
