Something that intrigues me is 'heart of hearts' wishes.
It's a bit hard to explain, but it's supposed to be a wish that encompasses your deepest desire, so deep even you wouldn't know to ask for it if you could have anything you wanted, in fact taking your active, present wants completely out of the equation. A brief example of the concept.
I can't help but think what such a wish could be for me or anyone else. Because it can certainly change, and blasts through all pretense and pomp one might acquire in one's life.