I don't agree with you. Avoidance is based on the sun and stars. How can it be random?

Yes, taboos are based on the influence of the magnetic fields of the sun, moon and stars on the whole earth. If something is incompatible with such a magnetic field, it is taboo and appropriate. At the same time, there are some taboo days and festivals that combine some ancient sages, such as the anniversary of Yang Gong's death and Sannianzi. This is the basic situation. Then the day of selecting people depends on the combination of eight characters' likes and dislikes, the combination of cadres and branches, and what you do.