There is no distance in childhood: for a baby, a mother in the other room is gone forever, for a child the time until a birthday is endless. Whatever is absent is impossible, irretrievable, unreachable. Their mental landscape is like that of medieval paintings: a foreground full of vivid things and then a wall. The blue of distance comes with time, with the discovery of melancholy, of loss, the texture of longing, of the complexity of the terrain we traverse, and with the years of travel.