Anyone who studies numerology will be familiar with a set of methods to change time into eight characters. First of all, every year, the new year begins in silver moon. Then calculate the heavenly stems and earthly branches of each month in turn.
The so-called "birthdates" is to transform a person's "date of birth" into a chart composed of "heavenly stems and earthly branches" according to a specific law, which is a chart that can analyze a person's future fortune. Because the "total number of branches" in this picture is just "eight", it is collectively called "eight characters" or commonly known as "birth". A person's eight characters include "annual stem branch, monthly stem branch, daily stem branch and hourly stem branch", which looks like "four pillars", so the eight characters are also called "four pillars" and can also be called "four pillars of life".
Wei Zi graffiti is a way of life in China. It uses the birthday and time of the lunar calendar to arrange the life chart of Wei Zi. The chart format is as follows:
I haven't applied yet this afternoon
Chen `````````` unitary
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Yin' ugly' son' sea'
Speaking of the origin of Wei Zi's Dou Shu, we should start with Taoist Lv Chunyang, but it was not popular at that time. It was not until Chen Xiyi in the Song Dynasty and Luo Hongxian in the Ming Dynasty that they were gradually understood by ordinary people because of their relatively complete arrangement and theoretical exposition.
The method of deducing the astrolabe by riding a horse is to classify the stars in the above zodiac with a fixed formula, and analyze the possible situations in life by using the house position of each star and the correlation between them to avoid them. This is the most basic concept of Wei Zi's graffiti.
It's complicated to refine. Come and have a look.