Pema Chodron did not become one of my teachers until I had almost finished writing, but she diagnosed the problem so well that I can no longer say it without her help. We are all so busy constructing zones of safety that keep breaking down, she says, that we hardly notice where all the suffering is coming from. We keep thinking that the problem is out there, in the things that scare us: dark nights, dark thoughts, dark guests, dark emotions. If we could just defend ourselves better against those things, we think, then surely we would feel more solid and secure. But of course we are wrong about that, as experience proves again and again. The real problem has far less to do with what is really out there than it does with our resistance to finding out what is really out there. The suffering comes from our reluctance to learn to walk in the dark.1