Watch them all. It's just that the five elements such as Xin and Ren are valued, and the Buddha, lamp, and other sound are despised.
Because there are few explanations and applications of the influence of Nayin on numerology, and there are few starting points and ways to conduct in-depth research, plus the intention and conclusion pointed out by the principle of Shengke The two complement each other, so after re-examining the interdependence of heavenly stems and earthly branches, you should try to read Nayin. If you don’t understand Nayin or don’t want to delve into this aspect, you don’t need to read it.