"Last night the east wind buffeted my room again"

My but Li Yu liked putting the wind in his poems. This entry could as easily be called "Last night the wind and rain together blew/ The wall-curtains rustled in their autumn song", except it's this night and the rain hasn't started yet. In fact there's great swaths of blue-black sky showing between the clouds. But the wind certainly buffets my study and billows the curtains enough to knock things from the shelf.

And now I wonder why the English poet wanted the *western* wind to blow, 'That the small rain down can rain'?
( Memeage )