Classic Poem

To the south there is a dragon living in a mountain pool,
where old trees, dark and lush, touch limb to bending limb
When tree leaves yellow and fall, he goes to his winter sleep,
and from the east come vipers to play on the waters there.
Passing by, I marveled that they would dare come forth;
I drew a sword to slash them, but put it up again.
Ah-ah, song the sixth, its purpose long denied;
stream-cut valley, for my sake put on spring clothes again!