When we look from a distance at the canvas of life, we can see the contrasting colors. The joy and sorrow, the hope and despair—those emotional states representing the extreme situations of life appear in black and white. Of course, there are obviously many colors in between, and they are just as real as the opposites, but our eyes naturally fall on the points where the contrast is greatest. It is like looking at a Rembrandt painting and seeing the focal point of light, which immediately sets the