I stood for a long while before the shop window
Looking at the blue butterflies embroidered on tawny silk.
The building was a tower before me,
Time was loud behind me,
Sun went over the housetops and dusty trees;
And there they were, glistening, brilliant, motionless,
Stitched in a golden sky
By yellow patient fingers long since turned to dust.

Conrad Potter Aiken

http://www.poemhunter.com/poem/improvisations-light-and-snow-02/