I've read The Celestine Prophesy also. How your consciousness has its own vibration and you can raise it to higher and higher levels.

The one book I would definitely recommend for you is "Power Vs. Force" by
Dr. David Hawkins. This book will make you see everything differently.

Also, on a side note, since you are on this website you will be interested in Carlos Casteneda's books about a Yaqui medicine man who teaches an apprentice the ways of mescalito and weed. "The Teachings of Don Juan" by Carlos Casteneda is my recommendation. Enjoy!