I get even more nervous singing when everyone's fallen silent, but I really try to communicate the meaning of the lyrics, and there's people there listening to that, and if they're moved by it, then I'm moved as well.
I usually write about ordinary people and ordinary things, but Paul Farmer is the least ordinary person I've ever met... He's the leader of a small group of people who hope to cure a sick world, and I hope my book can help in some small way.