I don't think there's any harm at all in allowing a kid to fantasize. In fact, I think to stop people from fantasizing is a very destructive thing indeed.

Being fed, and having a soft bed, and other people being in charge, seemed the most wonderful prospect in the world at that moment.

Hagrid. You live in a wooden house!

For that was the terrible power of the dementors: to force their victims to relive the worst memories of their lives, and drown, powerless, in theirown despair. . . .

Help only comes to those who ask for it.

It was so good to be held. If only their relationship could be distilled into simple, wordless gestures of comfort. Why had humans ever learned to talk?

We've all got both light and dark inside us. What matters is the part we choose to act on. That's who we really are.