Black is the absence of all color. White is the presence of all colors. I suppose life must be one or the other. On the whole, though, I think I would prefer color to its absence. But then black does add depth and texture to color. Perhaps certain shades of gray are necessary to a complete palette. Even unrelieved black. Ah, a deep philosophical question. Is black necessary to life, even a happy life? Could we ever be happy if we did not at least occasionally experience misery?