What is a birthday and what kind of constellation is a good one?

Birthdates refers to the calendar date of a person's birth, with four columns, two words in each column, a total of eight words.

For example, Anonymous was born on June 2nd, 20th13rd of the lunar calendar (snake), so her date of birth is: She has not been born yet.

Generally speaking, a good eight-character pattern is successful, with a balance of yin and yang and a neutral five elements.