Divination art originated from witchcraft. "The Book of the Later Han Dynasty" contains: Mi Shengqing "Kindness is the symbol of Dan Shu." According to Biography of Southern Han Dynasty, Fei Changfang learned from a drug seller, "Being able to cure many diseases is the symbol ..." Seven Trillions of Clouds, Volume 7, Confucius said: "With the essence of Tao, Jian Mo must take the essence of things." Some Taoist priests and gas refiners are lucky when writing symbols, which may have certain curative effect. The Taoist book says: "The image is not orthomorphic, but it is spiritual when it is alive."
This can be seen from the explanation of nouns and the corresponding rough samples:
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But if you're looking for professional content, I'm afraid you'll have to go to the library-