I started writing the book without realizing I was writing a book. That sounds stupid, but it's true. I'd been trying and failing to make a different manuscript work, and I thought I was just taking a break by writing some short stories. I'm not a very good short story writer - the amazing compression that is required for short stories doesn't come easily to me. But anyway, I thought I'd try to write some short stories. And a structure took shape - I stumbled upon it.

I think of my success as a kind of fluke. How else could I possibly think of it? And although it's a banal thing to say, I wrote my book because I was writing my book. At first I didn't know I was writing it, and one of the amazing things that happened as I was putting sentences down on paper is that some of the things that are most sacred and important to me rose to the surface of the prose.

Half of what's wrong with people today is that they ain't got no place to go that makes them peaceful.

All of us, writers and non-writers alike, have incredible well-springs of personal experience and history. And we also have imagination - which I think is a kind of human miracle.

The ways in which theological constructs pose questions about what it is to be a human being on this earth are deeply elegant and deeply interesting to me. I may not always agree with the answers religion offers, but I take great interest in the questions it poses.

By sixteen I thought, "Ah, this is all crap, you're all sheep, I'm not going to church, leave me alone." And then at a certain point in my teens I started to go to Catholic churches, by myself. Not because I wanted to be Catholic, but because I wanted to light a candle and say something like a prayer and just sit there. There was something I was missing or trying to reconnect with. But it was a secret at the time. I'd developed this cynical persona and the last thing I wanted to admit was that I was skulking around churches in my spare time.

If there had never been the Great Migration there would never have been jazz, there would never have been Michelle Obama. A lot of amazing black people exist in this country because of the Great Migration. That's nation-building.