How should a monk overcome his demons?

We should always realize that this statement is very general, but it is embodied in what we often say in our lectures: one mind is for oneself, selfish, and this heart is evil; With a change of mind, this heart is Buddha to society and all beings. Therefore, it is very important to turn selfish ideas into the interests of society and all beings. If people can change their minds, they can naturally turn evil into good.