classic waka stream

Once they have fallen, though one yearns, there is no avail;
So today, if I am to pluck the cherry blossoms, let me pluck them.

Meaning
Once they have fallen, however much one may yearn for them, there is no avail; so today, if I am to pluck the cherry blossoms, I will pluck them.
Commentary
Spring Songs, Book One

Though it is painful to pluck the cherry blossoms in their beautiful bloom, if they are left as they are they will fall away; it is as though the poet were persuading his own heart that it might be better to pluck them now.
Author
Unknown Poet
Source
Kokin Wakashu
Other