Master Choa shares teachings on the Art & Science of Pranic Healing, including topics on Principles of Healing, the Laws of Nature, Invocation, Active Meditation, Self Healing, Becoming a Powerful Healer, Preventive Healing, and much more. Soft Cover. This is a Comprehensive Guide to all the Major Classes of GMCKS, Pranic Healing, Pranic Psychotherapy, Crystal Healing and Psychic Self Defense. Handy reminders of the critical principles and techniques at your fingertips when you need them!