Law is a poisonous insect, and the method of witchcraft is to harm people with the toxins of these poisonous insects. Due to the lack of scientific medical knowledge in ancient times, people associated the phenomenon of poisoning death with witchcraft. The method of making poisonous insect witchcraft is to release poisonous insects, such as spiders, scorpions, toads, poisonous snakes and centipedes. In a container, without feeding, sealed for ten days. Poisonous insects will bite each other in order to survive, and the last thing that can survive is the method. People who eat this method will grow worms in their stomachs, slowly become weak and die.
Others make cursed dolls, that is, make a doll out of paulownia, and write the name, birthday and so on of the cursed person. On the doll, then curse it, and then bury the doll in or near the cursed person's residence. The yogi believes that through this method, the soul of the cursed person can be controlled or ingested.
During the period of Emperor Wu of the Han Dynasty, when Chen Ajiao fell out of favor, he cursed the emperor's new favorite Wei Zifu with witchcraft. When Emperor Wu of the Han Dynasty learned about it, he deposed Queen Chen and even killed more than 300 wizards and imperial secretaries. It can be seen that witchcraft has a great influence.