Bai Juyi - Grasses

Boundless grasses over the plain
Come and go with every season;
Wildfire never quite consumes them --
They are tall once more in the spring wind.
Sweet they press on the old high- road
And reach the crumbling city-gate....
O Prince of Friends, you are gone again....
I hear them sighing after you.

Bai Juyi

http://www.poemhunter.com/poem/grasses/