This document provides an overview of Scientology, including its history, beliefs, practices, and demographics. It notes that Scientology was founded in 1950 and portrayed itself as non-religious at first, focusing on self-help. The core belief is that a person's spirit called a "thetan" experiences past lives that cause mental and physical problems, which can be resolved through counseling sessions called "auditing." Scientologists aim to achieve different levels on the "Bridge to Total Freedom" by removing traumatic memories through auditing. However, the highest levels have never actually been achieved and much about Scientology's beliefs and practices remains secretive or unproven.