Fortune-telling refers to fortune-telling in Yin and Yang studies.

Fortune-telling is an act of using personal information, such as the lines on the face and hands, the eight characters of birth, the strokes of names and so on. , with the help of the five elements and gossip to predict or judge good or bad luck. It is mainly spread in places where Chinese people gather, such as East Asia and Southeast Asia, and has now entered Europe and America.

There are many kinds of fortune-telling methods, which are regarded as a subject by the good name; Called numerology, it also enters physiognomy. A learned fortune teller linked fortune-telling with the Book of Changes, one of the five classics. In fact, the Book of Changes itself is also considered by some people as the earliest divination book.

Interpretation of the Book of Rites: "The Book of Changes says,' A gentleman should be cautious at the beginning. If the difference is a million miles, the mistake will be a thousand miles. The ancients believed that small changes would have a great impact on the future. According to Lu's Spring and Autumn Annals, there was a border town in Chu called Beiliang. At that time, girls in the border town of Wu were picking mulberry leaves on the border. While playing games, Miss Wu accidentally stepped on Miss Beiliang. The low beam people took the injured girl to blame the Wu people. The people of Wu were rude, and the people of Beiliang were very angry, so they killed Wu and left. Wu people went to Beiliang for revenge and killed the whole family of Beiliang people. The doctor in Beiliang Shoucheng was furious and sent troops to fight back against the Wu people, killing all the local Wu people, old and young. Wu Wang Yi was very angry after hearing this. He invaded Chu border town, captured Iraq and left. As a result, there has been a large-scale conflict between Wu Chu. From playing games and hurting my feet, to the outbreak of a large-scale war between the two countries, and then to Wu Jun's invasion of Du Ying, there is an invisible death force in a series of evolution, which irretrievably pushes the incident to an uncontrollable situation step by step. Therefore, the ancients took bad luck and prosperity seriously, because small things can change the fate of the future. The ancients thought that women wore purple ice silver inlaid with blue velvet crystal ornaments, and men wore red bamboo stone ornaments, and added "hidden mustard seeds to dye the spring and autumn" on the binder. In this way, we can pray for opportunities to bring happiness to life and seal bad luck.