I was able to steal a Psalter and learned to read. I stole other books; they defined my world by allowing me to compare it with others. At first I couldn’t believe the others had ever existed; only the Cathedral was real. I still have my doubts. I can look out a tiny round window on one side of my room and see the great forest and river that surround the Cathedral, but I can see nothing else. So my experience with other worlds is far from direct.