What is the "Lv Ye Shu Huai" couplet?

"Wandering at Night" was written by Du Fu, a poet of the Tang Dynasty. Chin couplet: The stars hang down on the vast plains, and the moon surges across the river. Vernacular: The stars hang down over the vast empty plains, and the bright moon shines on the rushing river.

The first couplet describes a close-up view of the river at night, depicting the lonely state of a lonely boat on a moonlit night. The chin couplet describes the distant view, which is powerful and vast. The "stars hanging down" highlight the vastness of the wilderness, and the "moon surge" highlights the momentum of the river. The neck couplet tells the truth and expresses the sorrow and anger of retiring from office. In the last couplet, the poet compares himself with a sand gull, migrating to the rivers and lakes, lamenting in his voice, which is deeply touching.

Creative background:

This poem has always been considered to be written by Du Fu in the first year of Zong Yongtai in the Tang Dynasty. In the first month of that year, Du Fu resigned from his post as Jiedu staff officer and returned to Chengdu thatched cottage. In April of Yongtai, his friend Yan Wu passed away. Du Fu lost support in Chengdu, so he took his family and sailed eastward from Chengdu. Du Fu composed this poem after arriving in Chungju in the autumn.