Disillusionment of Ten O'Clock (by Wallace Stevens)

One of the few vers libre poems I really like:

Disillusionment of Ten O'Clock
by Wallace Stevens (1915)

The houses are haunted
By white night-gowns.
None are green,
Or purple with green rings,
Or green with yellow rings,
Or yellow with blue rings.
None of them are strange,
With socks of lace
And beaded ceintures.
People are not going
To dream of baboons and periwinkles.
Only, here and there, an old sailor,
Drunk and asleep in his boots,
Catches tigers
In red weather.

The imagery, of course, is beautiful. What makes it work for me, methinks, is the repetition -- of colors, of words, of sounds -- which lends to it a certain sense of structure and thematic coherence.