According to certain written records, "Put various bugs and snakes in a container and keep them in it until only a single living creature is left. That creature is called the 'undead insect'. It has the ability to confuse people and could be introduced through food or drink. It could do great harm to the victims."
The Miao people were experts in raising undead insects, which were called "grass ghosts" in the Miao language. Since the insect raisers were all female, they also went by the name "women of grass ghost".
The practice of raising undead insects was not part of the Taoist skills, but originated from the witchcraft culture, which was to some extent similar to the techniques of Mao Mountain. According to the customs of the Miao people, every village must have its own woman of grass ghost. However, with the passage of time, few successors of this skill remained.
