1. This poem comes from "Song of Willows" written by Yu Xin of the Northern Zhou Dynasty. The flying catkins in the poem: flying catkins. The complete poem is "Remembering the flying catkins under the goose feathers, not the green silk horse tail hanging down." It describes that the flying catkins are as numerous and white as the goose feathers. The catkins are falling in front of the eyes. When the poet recalls the past alone, his thoughts are like the flying catkins. Like catkins.
2. Yu Xin (513-581), also known as Zishan, also known as Lancheng. A native of Xinye County, Nanyang County (now Xinye, Henan Province). A writer in the Southern and Northern Dynasties. His family has "seven generations of scholars" and "five generations of collected works". His father, Yu Jianwu, was the secretary of the Southern Liang Dynasty and was also famous for his literary talent.
3. Yu Xin is the most famous poet who came from the south to the north. He suffered the unique bitterness of life in the divided era, but he produced the literary fruits of "the victory of the poor in the north and the south". His literary achievements also indicate the prospects for the integration of northern and southern literary styles.