The usual understanding is: flowers and trees know that spring will wither, so all kinds of flowers and trees show their brilliance; Catkin and elm lack talent and foresight, so they have to drift with the wind.
From this perspective, flowers and trees are quite spiritual. They realize that time and tide wait for no man, and they know how to try their best to show their life value. Flowers and plants are still like this, let alone people? How can you follow the example of catkins and waste your money?
Others interpret this poem as "flowers and trees know that their days are numbered, so they do their best for the last touch of glitz;" Catkin and money look down on these tricks, elegant and carefree, and look down on disputes. How's it going? ?