Through long-term observation and thinking, Emperor Fuxi found that there is a law between all things in the universe. At that time, humans had no writing. In order to express this rule, the clever Fuxi used the symbol "-". "-"Tai Chi, Tao and the vitality of the chaotic world. Fuxi believes that everything in the world comes from the whole of vitality. The primordial qi generates Yang, and Yang is Yang, which is represented by "-",and Yang is singular; The vitality is static and produces Yin, and Yin is Yin, which is indicated by "-",and Yin is even. One yin and one yang, two devices. Fuxi believes that Yin and Yang are the most basic elements that make up everything in the universe. However, how do the yin and yang of everything in the universe change? What is the law of transformation? Fuxi wanted to think, but he couldn't think of a clue.
One day, Fuxi caught a white turtle while fishing by the river. This turtle is nearly round, with claws like dragons, white and exquisite. The texture of the turtle is patchy: there are five in the middle, eight around, 24 around the shell, and 12 on the ventral floor.
Fuxi thought the white turtle was sacred, so he didn't eat it, but dug a pool and put it in. Every time Fuxi catches some small fish and shrimp to feed the white turtle, the white turtle will come to Fuxi and lie quietly by the pit. Fuxi sat by the pit, looking at the white turtle, thinking about the laws between all things in the universe.
One day, Fuxi folded a straw and drew it on the ground against the pattern on the white turtle shell. Painting, painting, actually drew four elephants, namely Shaoyang, Lao Yang, Shaoyin and Laoyin. Then, on the basis of the four images, eight new symbols, namely, eight diagrams, namely, innate gossip, were produced by drawing all the way for the sun, all the way for yin, all the way for yin, all the way for yang and all the way for yang.
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