What About the River?

What about the river
pushing on the stone?
How he scrapes
and wears the surface down,
just to hear him moan.
What about the river,
all his strength and might?
How he bends
and shrinks his power down,
all for just one night.
What about the river?
How is he perceived?
All the work
and time that he puts in,
and he's never been relieved.