Origin of the Soul and the Purpose of Reincarnation serves as a complement to prior books on reincarnation written by Dr. Semkiw, such as Born Again and Return of the Revolutionaries, which focus on cases which demonstrate objective evidence of reincarnation. Dr. Semkiw draws upon independent research, including validated childhood past life memory cases published by Ian Stevenson, MD of the University of Virginia, to better understand the nature of the soul and how reincarnation works. Dr. Semkiw also utilizes information gathered through Kevin Ryerson, a trance medium who has been featured in Shirley MacLaine