The eight characters, also called the four pillars, are the eight characters of the heavenly stems and earthly branches found in the calendar. The heavenly stems and earthly branches are used to represent the year, month, day, and hour of a person's birth. Together they are eight characters. Eight-character numerology (eight-character numerology, eight-character numerology) is a method of predicting fortune based on the eight-character numerology
Bazi numerology began in the Tang Dynasty, with the year pillar as the main body, the birth year stem as the natal zodiac, supplemented by Nayin. Law pushes fate. Li Xuzhong in the Tang Dynasty changed the year to the main one and used the four pillars of year, month, day and hour to predict fortune. Xu Ziping of the Five Dynasties changed the name of the sun stem to me (the sun master), and the restraint of the five elements between the four pillars and the combination of punishment and conflict were the focus of fortune-telling, and they were carried forward. Today's horoscope predictions are all based on the Ziping method, so the horoscope is also called "Ziping method" or "Ziping horoscope".
The "eight characters" are also called the four pillars (year pillar, month pillar, day pillar, hour pillar). Each pillar has two characters, with the heavenly stems (A, B, C, D, E, Ji, Geng) on ??top. , Xin, Ren, Gui), followed by the Earthly Branches (Zi, Chou, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu, Hai), which have exactly eight characters, so they are called "Eight Characters". Its principle is based on the yin and yang and the five elements, so it is collectively referred to as the "Five Elements Technique" together with the "Ziwei Dou Shu".