The Outer Limits of Edgar Casey's Power

In their book, the outer limits of edgar casey's power, his sons synthesized the data that they had. They identify several sources. The idea is that caseys subconscious made telepathic contact with the subconscious of the client. Deep down, the client had a subconscious understanding of what was going on in their body. By tapping this information, casey was able to describe and diagnose the problem,. as well as get leads for what might make it better.