As soon as another person becomes important to us, so that we feel in our lives the gravitational pull of his existence, we are to a certain extent astonished by his individuality. From time to time we pause in his presence, and allow the incomprehensible fact of his being in the world to dawn on us. And if we love him and trust him, and feel the comfort of his companionship, then our sentiment, in these moments, is like the sentiment of beauty--a pure endorsement of the other, whose soul shines in his face and gestures as beauty shines in a work of art.