Effie says: "Seems to me I once knew a rich girl who didn't give her things to poor girls. I wish I could remember who she was, and tell her to be as kind as that china doll.” The spirit replies: "We recall these things to people's minds by dreams. I think the girl you speak of won't forget this one." And the spirit smiled, as if he enjoyed some joke which she did not see.
What joke is the spirit enjoying?