Laugh at the latest spring breeze and teach square dance

This poem describes the scene poem of catkins flying in spring, and also implies the reunion of old people. In the wind, catkins are scattered everywhere. When I was young, old people drifted around with the world. Today, they finally met. It may have been a long time, and almost all of them are passers-by. So I used "pedestrian laugh". It turned out that the old people met. This poem is simple, but it has profound meaning.

The last sentence is a pun. First, the willow tree looks like an old man. Second, it is said that old friends have been reunited for many years, and it is already a dying day.