Finger-pointing and back-pointing is a combination of four-column branches, based on annual (Japanese) branches. For example, "you can see the ugliness of the past" is the evil behind. This evil takes the trinity first and longevity fourth, which means that you like everything strongly and don't want to fall behind others, which is often the initiator of things. Therefore, in feudal society, this situation is very easy to attract attention, and it is also very easy to attract people's jealousy behind it.
Finger evil refers to a special four-column structure, which has always existed and does not need to solve the problem. In addition, from today's society, people with this structure often have strong self-promotion ability and competitiveness, so there is no need to solve it.