He lives a lot in his head, like a lot of us live in our...

He lives a lot in his head, like a lot of us live in our little condos with our computers. We interact less and less with other humans and don't use our imaginations as much. This character's head is a big hot-air balloon, and he flies away to find the balance between (living in) the real world and being able to keep his creativity and childlike heart.