What is the central idea of Ye Saining's White Birch Tree?

Poetry takes birch as the central image and describes its beauty from different angles. Snowflakes, embroidered lace and white tassels are crystal clear in the morning glow, covered with silver cream, graceful and full of noble beauty. The birch tree in the poem is full of color changes and dynamic beauty. It is so noble and upright, and it is a symbol of noble personality.