except from chapter 4

"As it approached straight up at 90 degrees I was afraid I would fall off into oblivion. But there was no gravity here, and it continued to draw until we had a half circle at 180 degrees, and I was completely upside down. Soon I passed 270º and then came full around to 360º, where I started."

excerpt from chapter 3

“Yes, something like that. If you take a piece of paper—or whatever, a stream of energy—grab both ends and give it one twist. Then join the ends together, you have a path than joins a little like a circle. You can run your finger along a path in one direction through all its folds and before you know it you are right back where you started. God has made this reality a little like that.”