Written by three world-renowned Rieki masters from different lineages, here is a wealth of information never before brought together in one place. Its broad spectrum of topics includes the search for a scientific explanation of Reiki; Reiki as a spiritual path; the latest understanding of Dr. Usui's original methods; how Reiki is currently practiced in Japan; an analysis of its Western evolution and likely future; outlines for Reiki classes; 20 unpublished Usui treatment positions, and much more.