Why is Gu Cheng called a fairy tale poet?

Gu Cheng is a representative figure of China's misty poetry school in the new period, and is known as a "fairy tale poet" who sees the world with a childlike innocence. Compared with Shu Ting's elegance, charm, beauty and sadness, Gu Cheng's poems are naive. 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.