Birthday plays an important role in Han folk beliefs, and ancient Han astrologers calculate people's fate accordingly? [ 1]? . Eight-character prediction is developing continuously in practice. From Li's tripartite confrontation to Li's tripartite confrontation, and then to the four pillars of the sun, the moon and the moon, every step of progress contains the hard work of scholars and social practice activists in past dynasties.
Heavenly Stems and Earthly Branches
There are ten kinds of heavenly stems, including: A, B, C, D, E, Ji, G, Xin, Man and Ghost. There are twelve earthly branches: Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu and Hai.
Heavenly stems and earthly branches used to record the sun. Ten heavenly stems and twelve earthly branches are combined into sixty units in turn. Odd aerial stems are matched with odd ground branches, and even aerial stems are matched with even ground branches. From Jiazi to Guihai, there are sixty, which are called Sixty Jiazi. In ancient China, people used this method to record the year, month and day, and so on.