Billy Collins on the end of a poem

Billy Collins is an American poet born in 1941.  He says:

"By the end of a poem, the reader should be in a different place from where he started. I would like him to be slightly disoriented at the end, like I drove him outside of town at night and dropped him off in a cornfield."

This is taken from Garrison Keillor's anthology, Good Poems, 2002, New York: Viking Penguin.

I like this collection of poems by Keillor, but my collection would be different. I'd include Rita Dove!