Darkness is always there. Educating children that there is no darkness in the world will not make the darkness disappear, but will make them unprepared.

Darkness, an adjective, is the opposite of "light". Darkness can refer to a gloomy mental state, but it is not equal to evil. In the second dimension, dark representation includes revealing the cruelty and oppression of society. The elements of bloody violence have the dark side of human nature, including obscure content and scary content. In literature, the opposition between darkness and light, if used to describe it, should refer to things that violate the most basic morality and values of human beings and show the cruelty and violence of society, uncivilized and irrational.