What does it mean to remember flying goose feathers alone?

1. This poem comes from the Willow Song written by Yu Xin in the Northern Zhou Dynasty, and the flying catkins in the poem are flying catkins. The complete poem is "I remember flying goose feathers alone, but I don't have a ponytail." Describe the flying catkins as much and white as goose feathers, and the catkins are falling in front of you. When the poet recalls the past alone, his thoughts are just like the flying catkins.

2. Yu Xin (513-581), whose name was Zishan, whose name was Lan Cheng. A native of Xinye County, Nanyang County (now Xinye, Henan Province). Writers in the Southern and Northern Dynasties. His family is "a scholar in the seventh generation" and "a collection of works in the fifth generation". His father Yu Jianwu is a secretary in Nanliang and is also famous for his literary talent.

3. Yu Xin is the most famous poet who went from south to north. He suffered the unique bitterness of life in the split era, but he achieved the literary achievement of "the victory of the poor north and the south". His literary achievements also show the prospect of the integration of North and South styles.