Geof Huth on "Poems Approaching the Visual"

An excerpt:

A problem with poetry—a benefit of poetry—is that it tends inexorably towards the visual. Prose naturally fills the space surrounding it, while poetry changes shape: clumping up in a corner, spreading wide and fat, atomizing across a page. Prose is water; poetry is steam or ice or water. Prose is a stable element; poetry changes form to suit its purpose and the conditions of its environment.

There's more here.