But suppose your dæmon settles in a shape you don't like? Well, then, you're discontented, en't you? There's plenty of folk as'd like to have a lion as a dæmon, and they end up with a poodle. And till they learn to be satisfied with what they are, they're going to be fretful about it. Waste of feeling, that is. But it didn't seem to Lyra that she would ever grow up.

The Golden Compass