What is the specific date of birth of Guanyin?

That is, year, month, day and hour, the eight characters in the four columns are all negative. (If the heavenly stems are negative as follows: B, D, Ji, Xin, Gui, and the earthly branches are negative as follows: Ugliness, Mao, Si, Wei, You, Hai) It is exactly the four columns composed of all negative heavenly stems and earthly branches.

For example, it has been one month since the Year of Ugly B, and the ugly day was born in the ugly time.

You said that all-yin people are yin and yang eyes and can see things that others can't. This statement is not credible. Qigong says "open your eyes" and you may see everything. If a person can see what others can't, it shows that this person has strong analytical ability and can infer the development, process and result of things.