Appropriately, "Why I Am Not a Painter"--which in fact suggests that he is--contains no visual images at all, though it describes the development of a painting. As in Pollock, what replaces image is not so much plot, though the poem does tell a story and imply an argument, as the movement of the individual line, frequently circling back on itself to create the duration as well as the depth and texture of a particular experience.
From "O’Hara on the Silver Range," Contemporary Literature (1976).