They weave a slow andante as in sleep,
Scaled yellow, swampy black, plague-spotted white;
With blue and lidless eyes at watch they keep
A treachery of silence; infinite
Ancestral angers brood in these dull eyes
Where the long-lineaged venom of the snake
Meditates evil; woven intricacies
Of Oriental arabesque awake,
Unfold, expand, contract, and raise and sway
Swoln heart-shaped heads, flattened as by a heel,
Erect to suck the sunlight from the day,
And stealthily and gradually reveal
Dim cabalistic signs of spots and rings
Among their folds of faded tapestry;
Then these fat, foul, unbreathing, moving things
Droop back to stagnant immobility.
Arthur Symons
http://www.poemhunter.com/poem/the-andante-of-snakes/