News of Tom Cruise’s split with Katie Holmes and questions about any role that Cruise’s status as a Scientologist may be playing in the divorce have a lot of people wondering: What is Scientology, anyway?

In a series of tweets on Sunday, News Corp. boss Rupert Murdoch called the religion “a very weird cult” and said that Cruise is the “number two or three” man in the church’s hierarchy.

Here are the basics about the religion. What other questions do you have?

What is Scientology?

Scientology describes itself as a religion that was founded in the 1950s by L. Ron Hubbard.

At the core of Scientology is a belief that each human has a reactive mind that responds to life’s traumas, clouding the analytic mind and keeping us from experiencing reality. Members of the religion submit to a process called auditing to find the sources of this trauma, reliving those experiences in an attempt to neutralize them and reassert the primacy of the analytic mind, working toward a spiritual state called “clear.”

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