The Glass Bubbles

The motion of gathering loops of water
Must either burst or remain in a moment.
The violet colors through the glass
Throw up little swellings that appear
And spatter as soon as another strikes
And is born; so pure are they of colored
Hues, that we feel the absent strength
Of its power. When they begin they gather
Like sand on the beach: each bubble
Contains a complete eye of water.

Source: The Oxford Book of American Poetry (Oxford University Press, 2006)