Because the rain orders the day,
And because the water orders the rain
To and fro; do not be disenchanted
If by rain's marching and water's routing,
Everything becomes disarrayed, in puddles.
Because the green moss sits on stones,
And because stones sit still on riverbanks
And moss grows not on moving stones,
Do not be perplexed, if moss and shade
Hide in the crevices, where you cannot see.
It is enough, enough that rain exists at all;
That water wets the dry stones thirst, like a dew,
That still green water laps the undersides of shore.
Do not forget these things of earth,
Which are timeless, when compared to the span of men.
Patti Masterman
http://www.poemhunter.com/poem/because-the-rain-orders-the-day/