The central insight of Scientology is that the being is eternal, what Hubbard terms a "thetan." "This chap, in other words, was somebody until he began to identify his beingness with a thing ...

In December of 1952, Hubbard opened his first Church of Scientology, transforming dianetics into a theology. Thetans, he wrote, are the souls that Xenu banished to Planet Earth where they are ...

3. She spent millions of dollars on the church Leah says that she reached Operating Thetan Level 5, or OT 5, in the church. The Church of Scientology reputedly operates on different levels ...

The actress had risen through Scientology's ranks to achieve Operating Thetan Level Five, with three more rungs to climb until reaching the highest spiritual rank, according to The Hollywood Reporter.