The stars cleave the sky.
Yet for us they rest,
And their race-course high
Is a shining nest!

The hours hurry on.
But where is thy flight,
Soft pavilion
Of motionless night?

Earth gives up her trees
To the holy air;
They live in the breeze;
They are saints at prayer!

Summer night, come from God,
On your beauty, I see,
A still wave has flowed
Of eternity!

George MacDonald

http://www.poemhunter.com/poem/an-improvisation/