Is a person's numerology based on heaven or sound?

A person's fate is inferred from his date of birth. The five elements of the sun exist in the eight characters, which are a whole. It is impossible to pick out a certain line to infer good or bad. The sun stem is only a central point of the eight characters, which is used as a reference to calculate in all aspects; Daily cooperation and sound reception should be fully considered; Yin Na school can see elephants, but it has limitations in seeing specific things; It is authentic to break your life every year and every day. The combination of Yin Na and Shen Sha can be more accurate!