classic waka stream

though not yet fallen,
already they are to be regretted—
these autumn leaves,
for I behold their hues as those
that are but for this single time.

Meaning
Though they have not yet fallen, the autumn leaves are already to be regretted, for I see their colors as those that exist only for this fleeting moment.
Commentary
Book Five Autumn Poems (Part Two)

Composed at a poetry contest in the imperial palace during the Kanpyō era.

The poem expresses the beauty of autumn leaves that will soon fall. Even before they scatter, they are already felt to be precious and transient, for their colors can be seen only for a limited time. It conveys the sense of impermanence found in seasonal beauty.
Author
Unknown Poet
Source
Kokin Wakashu
Other