classic waka stream

If only my heart,
that feels such regret,
could become a thread,
then each falling blossom
I would pierce and hold in place.

Meaning
If only my heart, which feels such regret, could become a thread—then I would pierce each falling blossom and keep it from scattering.
Commentary
Book II, Spring Poems (Part Two)

A poem composed when a poetry contest was to be held at the residence of the Ninna Middle Captain’s consort.

The abstract feeling of regret at the falling blossoms is given concrete form as a thread, with which the poet imagines binding each petal to keep it from falling.
Author
Sosei Hoshi
Source
Kokin Wakashu
Other