It considers not only how we relate to others, but how we relate to our ideas of others so that a completely phony, non-human replica of a dead wife can inspire the same feelings that the wife herself once did. That is a peculiarity of humans: We feel the same emotions for our ideas as we do for the real world, which is why we can cry while reading a book, or fall in love with movie stars. Our idea of humanity bewitches us, while humanity itself stays safely sealed away into its billions of separate containers, or "people.