When did the Taoist lottery begin? What is the principle?

The spiritual background of divination is evil spirits. There are three main ways, one is to observe colors, analyze logic and guess, which is not real divination. The second way is based on the Eight Diagrams principle of Zhouyi, which requires study and practice, and there are more complicated technical problems. The accuracy of this divination is related to people's mood and state, so the accuracy is not too high. The third is that evil spirits are directly transmitted through consciousness or informed by sounds and pictures, so that people can accurately tell what others are asking. Or you can see images or even text symbols from other people's hands and faces, and then say what others want to divine.