Wildness. We're running out of it, even up in Alaska. People need to be reminded that the world is unsafe and unpredictable, and at a moment's notice, they could lose everything, like that. I do it to remind them that chaos is always out there, lurking beyond the horizon. That, plus, sometimes you have to do something bad, just to know you're alive.
You write in order to change the world, knowing perfectly well that you probably can't, but also knowing that literature is indispensable to the world... The world changes according to the way people see it, and if you alter, even by a millimeter, the way ... people look at reality, then you can change it.