Jean'll take this topic. It works. It has nothing to do with heights.

"Well, the first one was a world where emotions manifested as magic. For example whenever I got angry I made fire and whenever I was sad it was raining. There were also these gods that all ruled over two emotions and everyone was aligned to one of them. Mine was Fear and Bravery. Communications were all done by telepathy."

He'll wait for his reaction to it before telling about the other - or if he happens to have any questions.