I know that one of the things that I really did to push myself was to write more formal poems, so I could feel like I was more of a master of language than I had been before. That was challenging and gratifying in so many ways. Then with these new poems, I've gone back to free verse, because it would be easy to paint myself into a corner with form. I saw myself becoming more opaque with the formal poems than I wanted to be. It took me a long time to work back into free verse again. That was a challenge in itself. You're always having to push yourself.