The Oversoul Seven Trilogy is an absolutely amazing book to read if you have questions on reality.  Jane Roberts uses the teachings of the channeled Seth to put together a trilogy of three books putting all of this knowledge into a fictional story.  Although this book is labeled as fiction, it has many truths to it and I definitely suggest reading this.  I've read it three times already :)

This book is nothing short of magic. Although, it's 600 pages, you find yourself asking why it couldn't be longer. The story never really starts or ends though. It seems to breath. The depth and multi-dimensional structure of the book make for a read like no other. I regularly don't read fiction, but this book grabbed me for it's metaphysical, esoteric approach to a novel.