How important is the eight characters spoken by senior metaphysical masters to us?

This thing doesn't seem to matter to foreign names: but people who really understand it don't talk all over the sky; This goes against the senseless thought of Taoism; The horoscope is mainly composed of your date of birth; Including; Heavenly stems and earthly branches Yin-Yang and Five Elements; I study Chinese medicine; It is no exaggeration to say that from the perspective of Chinese medicine, you can use the yin-yang and five elements of Chinese medicine through your eight characters; You can directly infer that the viscera in your body will get sick; And can predict which year and which month; Wherever you go, this zang-fu organ will get sick; This is not surprising, although I am not proficient yet: but there are people around me who can, and I can see some patients' situation myself through this method.