If you want to find out more about Dianetics and Scientology, the best way to do this is to read an L. Ron Hubbard book on the subject. I personally recommend you read Dianetics: The Modern Science of Mental Health.
This book really helped me with understanding why people do the things they do! I'd find myself reacting a certain way and see others react to things in ways that didn't make sense. Now it does - AND I know how to handle it.