According to the query of Baidu Library, the main purpose of Ai Qing's poem "Mirror" is: on the one hand, it praises the character of the brave and dares to speak, on the other hand, it depicts all kinds of ugly phenomena that dare not face reality. A few lines of poetry have profound implications. Different ways of looking in the mirror project different psychological contents of people. The poem Mirror starts with an ordinary mirror "plane" by personification. Although the mirror is just a simple plane, it is unfathomable. The poet first introduced the characteristics of the mirror, because the mirror is "real" and "straightforward", so different people treat the mirror in different ways. Mirror is not so much a tool to reflect people's hearts as everyone is reflecting their inner world in different ways.