classic waka stream

白雲の絶え間になびく青柳の
葛城山に春風ぞ吹く
Roma-ji

Shirakumo no taema ni nabiku aoyagi no Katsuragiyama ni harukaze zo fuku

English Translation
Through the white clouds' gaps
the green willows trail and sway
and over the slopes
of Katsuragi mountain
the wind of the spring blows on
Meaning
Green willows sway in the breaks between white clouds, and over Katsuragi mountain the spring wind is blowing.
Commentary
Book One Spring Poems I 74

Headnote: a spring poem for the contest in fifteen hundred rounds.
The sixth poem in the run on willow. It takes up the gap of the previous poem and repeats the conceit of a willow seen through an opening, but what divides the view is now white cloud rather than haze. The headnote assigns it to the contest in fifteen hundred rounds.
The poet is Asukai no Masatsune (1170-1221), one of the compilers of the Shin Kokin Wakashu and held to be the founder of the Asukai school of kickball.
The time is spring; the place is Katsuragi mountain, on the border of Yamato and Kawachi.
The occasion was submission to the contest.

The first line puts the scene high up. Willow is a tree of the waterside, so pairing it with white cloud opens the view widely from top to bottom.
The second line has the branches swaying in the breaks between clouds. Where the previous poem's gap marked the line of sight, this one marks the place the willows stand.
The third line reaches down to the mountain named below: the mountain on which the willows grow.
The fourth line fixes the place. Katsuragi, on the border of Yamato and Kawachi, had long been spoken of as a dwelling of the gods.
An emphatic particle governs the verb at the close. As in the seventy-third poem the wind stands at the end, and the two together show what the wind does. Setting willow high on a mountain shifts it away from the received idea of a tree by water, and that is the poem's device.
Author
Fujiwara no Masatsune
Source
Shin Kokin Wakashu
Other