classic waka stream

In a summer night,
still thinking it early eve,
dawn has already come—
in what part of the clouds now
does the moon find its lodging?

Meaning
On a summer night, while I still think it is only early evening, dawn has already come—where among the clouds does the moon now find its lodging?
Commentary
Book III, Summer Poems

Composed at dawn after a night when the moon shone beautifully.

The poem expresses the shortness of summer nights. Though somewhat exaggerated, it imagines that before the moon can set in the west, the sun has already risen, and so the moon must be resting hidden somewhere among the clouds.
Author
Fukayabu
Source
Kokin Wakashu
Other