James Shirley - A Hymn

O FLY, my Soul! What hangs upon
   Thy drooping wings,
   And weighs them down
With love of gaudy mortal things?

The Sun is now i' the east: each shade
   As he doth rise
   Is shorter made,
That earth may lessen to our eyes.

O be not careless then and play
   Until the Star of Peace
Hide all his beams in dark recess!
Poor pilgrims needs must lose their way,
When all the shadows do increase.

James Shirley

http://www.poemhunter.com/poem/a-hymn-3/