Characteristics of Poetry: Gu Cheng's poems are innocent and confusing. However, in Gu Cheng's poems full of dreams and childishness, there is an adult sadness. Although this sadness is faint, it is as heavy as lead. Because this is not only the poet's personal sorrow, but also the sorrow of a generation after awakening, and the sorrow of an awakened generation to see the reality in front of them.