There are a lot of poets and poetry that I really enjoy. But if I had to narrow it down, I'd probably say "Tintern Abbey" by Wordsworth. But I'm a sucker for all of the English romantics -- Blake, Byron, Wordsworth, Keats, Shelly. . . . But "Tintern Abbey" is the poem that I return to several times a year just to sink into it. I mumble it to myself. Hell, I nearly have is memorized.