To understand religious and secular worldviews and their practical meaning we have to use imagination. We have to enter into the lives of those for whom such ideas and actions are important. As the Native American proverb says, "Never judge a person until you have walked a mile in his moccasins." Much of this book will be in a broad way informative; but it will also, I hope, convey something of the spirit of the human quest for cross cultural communication.