A "stream of anxiety" poem from Phillip X Levine

Phillip X Levine began writing "Woman on a Subway" more than 25 years ago, while sitting on a log in Woodstock, New York. But he may not be finished yet. So far, he can count at least 17 versions of the poem--or "prose song," as he describes the form he's arrived at for perhaps ten poems in his varied and prodigious catalog. 

Levine is now widely recogni…