Why did the poet use the image of Huayang in Ceng Gong's Singing Willow?

The flowers of poplars are different from ordinary petals, but flocculent, which makes poplars easy to drift with the wind, erratic and difficult to find. This trait is often used by poets to express a derogatory meaning, which means that people are light, inactive and hard to trust. Xie Yi's "Flower Heart and Boudoir Love" says "it's frivolous in the wind", and Gong Xiaomai's "Toon jathyapple" says "I want to complain to Liu Hua, but I'm afraid Liu Hua is frivolous and doesn't understand." People often call unfaithful women' easy virtue'. In the eyes of literati, Huayang is different after all. Pine trees are vigorous and majestic, chrysanthemums are fresh and distant, lotus flowers are noble and beautiful, bamboo is hollow and knotty, and plum blossoms are beautiful and cold-resistant, all of which are the virtue of literati and gentlemen to some extent, representing people's beautiful personality temperament. However, only Huayang is frivolous, which is inseparable from its inherent characteristics, and its uncertainty has attracted the contempt of these literati. In Song Dynasty, Sima Guang's "Early Summer among Guests" said: "April is sunny and rainy, and Nanshan is bright. There is no catkin due to the wind, but the sunflower leans toward the sun. " This poem compares catkins to sunflowers. Sunflowers and catkins floating in the wind of "beauty in flowers, care for the sun, loyalty of loyal ministers and virtue of chastity" are light and humble, and the difference between heaven and earth is clear. "Crazy Catkin Dancing with the Wind" Catkin borrows the wind to make people feel that catkin is have it both ways and has power. Yan also revealed the characteristics of villains. "Human feelings are catkins, and melodious will go with the spring breeze." Ceng Gong's "Chanting Willow" says: "Chaos is not yellow, and relying on the east wind will be crazy. I wonder if there is frost in heaven and earth. " When powerful little people gain power, they turn their hands into clouds and cover their hands for the rain. As we all know, "there is frost in heaven and earth", which means mocking influential villains.