But the walls are bare, too bare, defenseless. They are waiting for equations and revelations.
Don't know if you meant it to, but this brought up recollections of Fred's caves, both the one in Pylea and the one she constructs in the Hyperion once Angel brings her back, where she has to write everything down and the walls are completely covered.

Overall this was amazing. Beautiful and slightly creepy. Especially the last line with his funnier joke.