Liu Ren, Wei Zi and so on. What is playing the zodiac?

Snack, Liu Ren, Wei Zi and so on. They are all divination terms in ancient China, belonging to numerology in traditional Chinese culture, which are used to predict good fortune and bad fortune. In the traditional classification of the zodiac, snakes are regarded as mysterious, strange and intelligent representatives, so they are called "snake immortals". Therefore, divination terms like Liu Ren and Wei Zi refer to the zodiac as snakes.