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Chapter 3 of 50
基础知识
The origin of any form of divination cannot be separated from Yin and Yang. I won't go into the ancient philosophical explanations of Yin-Yang too deeply here—those obscure and abstruse theories can be set aside for now. Today, we focus less on theory and more on practical symbolism. Let's directly clarify what Yin and Yang are, and how they apply in daily life and in BaZi.
Yin and Yang held an extremely high status in the minds of the ancients. They abstracted and summarized various opposing yet interconnected phenomena in the natural world—heaven and earth, sun and moon, day and night, cold and heat, male and female, up and down—into the single concept of "Yin and Yang." Everyone knows the world is composed of Yin and Yang, and everyone can give examples: man is Yang, woman is Yin; heaven is Yang, earth is Yin. Yin and Yang oppose each other, yet they are mutually dependent. Without Yang, how could there be Yin? Without Yin, how could there be Yang? This is the unity of opposites within a pair of contradictions.
Yin and Yang represent the ancient Chinese civilization's distillation of the laws of natural operation. The greatest truth is simple—two characters explain all things in the universe. Describing everything in the world with just two characters may seem thin, but this is only the starting point; it becomes truly rich when used to describe all things.
So-called "description" is essentially using Yin and Yang to categorize all things in the world. Let me demonstrate through specific life examples how Yin and Yang nest layer upon layer:
| Classification Level | Yang | Yin |
|---|---|---|
| Human | Man | Woman |
| Man | Adult man 🌞 | Underage boy 🌱 |
| Adult man | Robust man 💪 | Frail man |
| Robust man | Hot temper 🔥 | Mild temper 🌿 |
| Man with hot temper | Wealthy 💰 | Poor |
| Wealthy man | Very rich | Moderately rich |
| Very rich man | Healthy | Unhealthy |
Anything can be divided and described using Yin and Yang, regardless of size, whether in time (the future is Yang, the past is Yin) or in space—wherever you look, there is Yin and Yang. Yin and Yang embody three principles: universality, relativity, and connectedness.
The role of Yin and Yang in BaZi is like rivers and mountains, sun and moon—indispensable and fundamental.
Wealth: If wealth in a BaZi chart embodies Yang characteristics, it signifies great wealth; when losing money manifests Yang traits, the loss is greater and more sudden.
Illness: If it manifests Yang characteristics, the illness strikes like a mountain collapsing—it can fell a person in an instant; if it manifests Yin characteristics, it's a chronic condition, a slow burn that can be just as deadly.
Personality: Yang is passionate, impatient, and stubborn 🔥; Yin is gentle, slow, and yielding 🌊.
Spousal relations: If the wife star manifests Yang traits, the husband star correspondingly manifests Yin traits, potentially resulting in a dominated husband, a strong wife with a weak husband, or the wife managing household affairs.
Promotion: Yang means rapid promotion; Yin means slow promotion.
Eloquence: Yang is speaking quickly, cursing fiercely, and confronting face-to-face; Yin is slow-speaking, rambling, and gossiping behind others' backs.
Gender of offspring: Yang is pure, clear energy, embodying the qualities of the Qian (Heaven) principle, governing ascent—if the child star shows pronounced Yang traits, sons are more likely; Yin is turbid energy, embodying the qualities of the Kun (Earth) principle, governing descent—if the child star shows pronounced Yin traits, daughters are more likely.
Once you understand Yin and Yang, you can try classifying everything around you into Yin and Yang. But can you determine a BaZi chart just by distinguishing Yin and Yang? No. You also need to master the Five Elements, which is the content of the next chapter.
Yin and Yang is a classification system, not a mystical force. The central idea of this chapter is that Yin and Yang are not some supernatural energy but rather a highly abstract binary classification tool. Its power lies in three principles:
These three principles form the foundation of all BaZi judgment logic—every character, element, and relationship in a chart must be assessed for its Yin-Yang inclination within a specific reference frame.
In essence, Yin and Yang can be understood as a primitive form of systems theory and information classification. The ancients didn't have modern terms like "variables" or "dimensions," yet with the two characters "Yin and Yang," they established an abstract modeling system for the phenomenal world.
From a modern perspective:
This way of thinking still inspires today: when facing complex problems, trying to make an initial abstraction with a binary framework and then refining layer by layer can effectively reduce cognitive load.
The deeper value of Yin-Yang theory lies in its provision of a non-absolutist mode of thinking. In Western traditional logic, A and not-A cannot simultaneously hold true; yet within the Yin-Yang framework, Yang contains Yin, Yin contains Yang, and each generates and transforms into the other. This subtly echoes wave-particle duality in modern physics and personality multi-facetedness in psychology.
Even more worth pondering is the infinite recursion of Yin-Yang: beneath any layer of classification, further Yin-Yang distinctions can still be made. This implies that no absolutely pure thing exists in the world—within the most Yang of things, seeds of Yin can be found, and in the most Yin of places, stirrings of Yang are contained. The saying "pure Yang does not give birth, pure Yin does not grow" captures precisely this principle.
The lesson of this thinking for modern people is: avoid extreme judgments. Within a stock market surge lurks the risk of a crash (Yang contains Yin), and in desperate circumstances often hide turning points (Yin contains Yang). A black-and-white worldview, from the perspective of Yin-Yang philosophy, is actually an insufficiently mature way of knowing.
Related concepts: Five Elements, Heavenly Stems and Earthly Branches, essence and function, movement and stillness, hardness and softness, clarity and turbidity, prosperity and decline, cold/warm/dry/damp
Extended reading:
Modern research:
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