The poet's theme is "School of Flowers". Flowers are a symbol of exquisiteness and beauty, as pure as children. They are in the "underground school", just like seedlings that are about to break ground in the soil, longing for the wonderful world outside.
Extended data
Lei Yun, showers, easterly winds, flowers, branches and green leaves are all written in the text of Flower School. The full text consists of nine natural paragraphs, depicting a vivid picture. First, it describes the flowers dancing and reveling on the green grass when the shower falls.
Then imagine those flowers that have closed their doors and done their homework, and they will have a holiday as soon as it rains; Then imagine them wearing all kinds of clothes and rushing out in the rain; Finally, imagine that Hua Xiao ran home in a hurry and raised his arm at his mother. The connection between the pictures is close and seamless.