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 the mind. I always wondered why I felt the way I did sometimes or why people acted irrationally. Well, Dianetics answers these and many other questions!