What does birthday mean?

1, birthdates, that is, eight characters, is the date when a person was born. Annual stems and branches form annual columns, monthly stems and branches form monthly columns, daily stems and branches form daily columns, and seasonal stems and branches form hourly columns; A total of four pillars, four stems and four branches, a total of eight words, so it is also called four pillars and eight characters. Eight-character numerology is a kind of knowledge that infers people's career, marriage, wealth, study, health and other things according to the theories of trunk and branch calendar, yin and yang and five elements. Also called Fan Fortune-telling, it is a fortune-telling method with a long history in China.

2. In the application of birthdays, there are people who criticize their own lives with Nianzhu or Zhu Yue as their main life, but most of them take Rizhu's daily work as their main life. Niangan represents ancestors, Yuegan represents parents, and Rizhi represents themselves and brothers and sisters (I am a man, and Rigan represents brothers and sisters; I am a woman, my sister and brother, and I am the heir. Also take the life palace, fetus, Universiade, Universiade, and fleeting time, and cooperate with the five elements of old age and moon order to restrain blame.