Fr. Michael Rennier at Dappled Things has some good remarks on the poem and on Epiphany, along with two readings of the poem, one by Eliot himself and another by Alec Guinness. Guinness has by far the more appealing and skillful voice. But I think I have a slight preference for Eliot's reading; somehow it sounds more like verse. Here's the link.
In either case one might not realize, if one heard either reading without previous knowledge of the poem, that it's a poem rather than a particularly rich bit of prose. It's not exactly free verse, but is irregular enough that it doesn't strike the ear as metrical. I've often thought that one of these days I would put some effort into trying to figure out why some free verse works as poetry and some does not. It's in the sound, and mostly in the rhythm. Some of it truly is prose broken into lines in arbitrary or crude ways.
However, these days whenever I use the phrase "one of these days" about some intention of my own I think chances are great that you're not ever going to get to it.