Poetry is perhaps the oldest art form. We can go back to an age-old idea of naming things, the Adamic impulse - to give something a name has always been an immensely powerful thing. To name something is to own it, to capture it. A poem is still a kind of spell, an incantation. Historically, a poem also invoked: it was a blessing, or a curse, or a charm. It had a motile power, was able to summon something into being. A poem is a special kind of speech-act. In a good poem there's the trance-like effect of language in its most concentrated, naked form.

It seems to me that metaphors come down to a certain idea of interconnectedness - that everything relates to everything else. Metaphors don't believe in autonomy. And in the end, perhaps that idea of interconnectedness is a moral position.

That's what Samuel Johnson said: "Read over your compositions, and wherever you meet with a passage which you think particularly fine, strike it out."

New York is great for writers insofar as you can pay someone to bring you food, to take your washing out and bring it back clean. It enables you. Writers always feel guilty when they're doing anything but writing, and New York allows you to really write all the time if you want to - though my kids put a limit on it.

The reason that the book exists is because there was a gap in you. You wrote the book to fulfill that gap in some way.

I think all writing is political. All writing shows a preoccupation with something, whatever that thing might be, and by putting pen to paper you are establishing a hierarchy of some sort - this emotion over that emotion, this memory over that memory, this thought over another. And isn't that process of establishing a hierarchy on the page a kind of political act?

Cargo cults fascinate me partly because Christianity itself is in many ways a cargo cult.