I found this book to be very enlightening in terms of integrating some of the original Japanese concepts and values of the Reiki system. 

Reiki is an adaptable and ever evolving system, but it's beneficial to review some of the concepts from the original system.

This book examines the "Ki" energy flow & reviews various hand positions to help increase the flow of personal energy.  The flow of "Ki" is important for the client and the Reiki practitioner as both benefit from a stronger channel of energy. 

The book also offers a framework of understanding and comparison to medical care & what we can do to continue to foster and nurture our personal spiritual development & emotional well-being during times of physiological stress or medical ailments.  

I truly enjoy this book and found it to be quite insightful and in alignment with my personal journey on the Reiki path.