I think it comes from really liking literary forms. Poetry is very beautiful, but the space on the page can be as affecting as where the text is. Like when Miles Davis doesn't play, it has a poignancy to it.
“I think it's necessary to identify with anything - with any character you play, there's got to be something in common, so you can link up to that person, even if it's like one tiny thing. But it's equally fun to play somebody completely different, and trying to find what that thing is to make it.”