“Sometimes as I am falling asleep in a dark, quiet room I have for a moment a great and treasurable illusion of the past. The wall of a tent leans up over my face, not visible but audible, a slanting plane of faint sound: the susurrus of blown snow. Nothing can be seen. The light-emission of the Chabe stove is cut off, and it exists only as a sphere of heat, a heart of warmth. The faint dampness and confining cling of my sleeping-bag; the sound of the snow; barely audible, Estraven’s breathing as he sleeps; darkness. Nothing else. We are inside, the two of us, in shelter, at rest, at the center of all things. Outside, as always, lies the great darkness, the cold, death’s solitude. In such fortunate moments as I fall asleep I know beyond doubt what the real center of my own life is, that time which is past and lost and yet is permanent, the enduring moment, the heart of warmth. I am not trying to say that I was happy, during those weeks of hauling a sledge across an ice-sheet in the dead of winter. I was hungry, overstrained, and often anxious, and it all got worse the longer it went on. I certainly wasn’t happy. Happiness has to do with reason, and only reason earns it. What I was given was the thing you can’t earn, and can’t keep, and often don’t even recognize at the time; I mean joy.”