Claim: Body thetan (similar to the concept of self) cling to a body because they have lost their free will and is found by locating any sensation of mass in the body.
Evidence: In Scientology, the concept of the thetan is similar to the concept of self, or the spirit or soul. According to Hubbard, body thetans cling to a body because they have lost their free will as a result of events in their past. Upon reaching OT III, the individual finds body thetans by locating any sensation of pressure or mass in his or her body.