Why do ancient poets always like to write with flowers when describing maple leaves?

Maple leaves and flowers are the most common images in autumn, and it is normal to be together.

There may also be geese, frost and chrysanthemums.

In addition to realism, maple leaf flowers have been endowed with a layer of meaning by literati-parting!

Yes, from Bai Letian's Pipa, the maple leaf flower has changed from realism to an allusion, doubly sad, because the image of the maple leaf flower is in autumn, hurting autumn, hurting parting and doubly sad, which suddenly makes this sentence have a different meaning.

It is not difficult to see from the existing poems that contain both "wind" and "land", most of which are farewell works. It is not difficult to see the intention of this combination.