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Capítulo 73 de 78
黄帝内经·素问
The Yellow Emperor sat in the Hall of Light and summoned Lei Gong, asking: "Do you understand the Way of medicine?" Lei Gong replied: "I can recite the medical classics and understand them slightly; I can understand but cannot discriminate; I can discriminate but cannot illumine; I can illumine but cannot manifest it in clinical practice. With my current level, I am only fit to treat ordinary officials, not worthy of treating princes and kings. I wish to learn the standards for establishing the Way of Heaven, coordinating the Four Seasons and Yin-Yang (seasonal changes and the waxing and waning of yin and yang), distinguishing the movements of stars and the light of sun and moon, so as to illumine the classical medical Way and make it clearer for later generations; to continue upward the learning of Shennong, to illumine the most true and essential medical Way, and to be comparable to the sages of antiquity."
The Yellow Emperor said: "Good! Do not lose this principle. These are the principles by which yin-yang, exterior-interior, upper-lower, male-female mutually transport and respond to one another. The medical Way requires knowing astronomy above, geography below, and human affairs in between—only then can it endure long; used to teach the people, it will not produce doubt or danger. The treatises on the medical Way can be transmitted to later generations and cherished as treasures."
Lei Gong said: "Allow me to receive the medical Way, through recitation and reading to understand and apply it." The Yellow Emperor said: "Have you not heard of the Yin-Yang Zhuan?"
Lei Gong said: "I do not know it." The Yellow Emperor said: "The Three Yang (here referring to extreme yang-heat qi, or the qi of the Taiyang channel) acts in the human body like Heaven presiding over the exterior; its movement upward and downward has no fixed pattern. Once the Three Yang qi merge, illness will arrive, damaging yin and yang in a biased manner."
Lei Gong said: "The Three Yang qi cannot be blocked—may I ask the principle behind this?" The Yellow Emperor said: "What is called 'Three Yang arriving alone' refers to the Three Yang qi merging and arriving together. When they merge and arrive, their momentum is like wind and rain; upward they may cause diseases of the vertex, downward they may cause leakage diseases (conditions such as urinary and fecal incontinence). Externally there is no fixed time of onset, internally there is no fixed location of disease; it does not conform to channel and collateral norms, and diagnosis is difficult to judge by upper and lower positions—one can only record and discriminate."
Lei Gong said: "My clinical effectiveness in treating disease is mediocre; I only speak of the general meaning." The Yellow Emperor said: "The Three Yang represent the extreme of yang, so they are called Utmost Yang. When the Three Yang pathogenic qi accumulates and merges, convulsions and fright arise; the onset is like a swift wind, the momentum is like thunder and lightning, the nine orifices are all blocked and obstructed, yang qi overflows like great waters, the throat becomes dry and blocked. If it invades the yin aspect, then upper and lower manifestations have no fixed pattern; if it presses upon the intestines, it becomes chang pi (dysentery, or conditions with purulent and bloody stools). This is called the Three Yang pathogenic qi directly striking the heart and chest; sitting is difficult, one cannot rise, and only when lying down does the body gain some ease. Since the diseases of the Three Yang are already so complex, if one wishes to know the utmost Way of the world, by what means can one discriminate yin and yang, respond to the four seasons, and accord with the five phases?"
Lei Gong said: "When you speak of yang disease I cannot discriminate it, and when you speak of yin disease I also cannot sort it out. Allow me to rise and receive instruction, in order to know the utmost Way." The Yellow Emperor said: "If you receive the tradition but do not know how to accord with the utmost Way, you will instead confuse the teacher's instructions. I will tell you the essential points of the utmost Way: When disease harms the five viscera, the sinews and bones will correspondingly wither and decline; if you say you cannot explain it and cannot discriminate it, then the learning governing medicine in the world will be cut off. Kidney qi (the essential qi of the kidneys) is about to be exhausted; all day long there is anxious distress, the sun is setting toward dusk, yet one remains unhurried and does not go out, unable to be diligent in human affairs."
The cognitive ladder of the medical Way: recite, understand, discriminate, illumine, manifest.
Lei Gong's self-description—"I can recite and understand, but understanding without discrimination, discrimination without illumining, illumining without manifesting"—reveals that learning medicine cannot stop at memorization and understanding; one must also be able to discriminate similarities and differences, illumine the mechanisms, and ultimately manifest them in clinical practice. This is a progression from knowledge to ability.
The holistic view of correspondence between Heaven and humanity.
The Yellow Emperor emphasizes "the mutual transport and response of yin-yang, exterior-interior, upper-lower, male-female," and states that the medical Way requires "knowing astronomy above, geography below, and human affairs in between." This indicates that classical Chinese medicine regards the human body not as isolated, but as connected to Heaven and Earth, the four seasons, stars and moon, and social human affairs. Diagnosis and health preservation must be examined within this great system.
The pathogenic characteristics of the Three Yang merging and arriving.
This chapter focuses on "Three Yang arriving alone" and "Three Yang merging and arriving," describing it as the extreme exuberance of utmost yang qi, with onset like wind and rain, like thunder and lightning, causing diseases of the vertex above, leakage diseases below, blockage of the nine orifices, and overflowing of yang qi—multi-system, multi-site symptoms. The core idea is: when yang-heat is at its extreme, the disease transmits rapidly, affecting exterior and interior, upper and lower alike, and diagnosis cannot be confined to conventional patterns.
Transmission must "accord with the utmost Way."
The Yellow Emperor warns Lei Gong that if one only receives the tradition without according with the utmost Way, one will "confuse the teacher's instructions." To accord with the utmost Way means to be able to "discriminate yin and yang, respond to the four seasons, and accord with the five phases," integrating scattered knowledge into the systematic framework of yin-yang, five phases, four seasons, and five viscera.
The cognitive ladder is akin to modern educational concepts.
"Recite—understand—discriminate—illumine—manifest" resembles the modern learning theory of memorization, comprehension, analysis, evaluation, and application, emphasizing that medical education cannot only stress memorization but must ultimately land on clinical competence and practical judgment.
The holistic view resonates with modern medical models.
"Knowing astronomy above, geography below, and human affairs in between" shares spiritual affinity with today's "bio-psycho-social" medical model. Modern chronomedicine and environmental medicine also suggest that climate, circadian rhythms, and geography affect health. However, the ancients' "astronomy, geography, human affairs" is rather general and needs to be concretized and validated through modern scientific methods—it cannot be directly equated.
The Three Yang merging and arriving describes the systemic derangement of acute severe illness.
The ancients used "yang qi overflowing" and "like wind and rain, thunder and lightning" to explain a state characterized by acute onset, rapid transmission, and multi-system involvement. From a modern perspective, this resembles certain acute infections, high fevers, severe metabolic derangements, or manifestations of multi-organ dysfunction. It is not a specific disease name, but the observation of "rapid transmission and systemic derangement" carries clinical warning significance. Specific conditions must be diagnosed and managed by modern medicine.
Prognostic descriptions should be viewed rationally.
"Kidney qi about to be exhausted" and "anxious distress at dusk" are ancient descriptions of critical illness and decline of vitality, which cannot be simplistically equated to modern renal failure. They reflect the ancients' intuitive judgment of severe prognosis, but lack modern diagnostic evidence.
Follow the four seasons and yin-yang, avoid hyperactivity of yang.
This chapter emphasizes the harm of utmost yang becoming violently exuberant. Daily life should avoid heat exposure, prolonged sleep deprivation, rage, and excessive consumption of spicy, drying, and heat-producing foods that easily promote yang-heat; maintain regular作息 and emotional equanimity.
Learning health knowledge should be gradual and progressive.
Do not merely be satisfied with "reciting a few health maxims"; learn to discriminate differences in constitution, season, and age, gradually building the habit of observing the body holistically.
Observing the body requires holistic connection.
The ancients noted that when the Three Yang merge and arrive, multiple orifices above and below are simultaneously affected, indicating that the body functions as an integrated whole. When discomfort arises, do not fixate on a single locality; rather, integrate factors such as作息, emotions, and diet for comprehensive judgment; in acute or severe conditions, seek medical attention promptly.
BuGua Reminder: This content is based on classical Chinese medicine texts and is provided solely for traditional cultural study and reading. It does not constitute any medical diagnosis, medication, or treatment advice; if you feel unwell, please seek medical attention promptly.