1. Four pillars refer to the time when a person was born, that is, year, month, day and hour. When people use "heavenly stem" and "earthly branch" to represent year, month, day and hour respectively, such as Jiazi Year, Shen Bingyue, Guichou Day and Renyin Time, it includes celestial bodies when a person is born.
2. The basic state of operation. There are two words in each column and eight characters in four columns, so fortune telling is also called "measuring eight characters" Time comparison table
According to the relationship between the five elements and heavenly stems and earthly branches, it is inferred that the human body is responsible and blessed. However, what I want to talk about here is not how to "measure eight characters", but how to calculate eight characters.