The Aeronaut's Windlass (The Cinder Spires, #1)

by Jim Butcher

There is but one reality; that is true—but the two of you experience it in slightly different ways. The older you get, I should think, the more you will come to understand that the universe is very much a looking glass, Miss Lancaster.” “Meaning what, precisely?” “That it reflects a great deal more of yourself to your senses than you probably know.”

“How are you going to talk to someone who has no idea?” Grimm said, nodding. “How can you explain something you can’t find words for? How can you get someone else to understand something for which they have no frame of reference?”