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 This book opened my eyes to hundreds of things I didn't even know they existed. It specially helped me understand the reason of some reactions in other people and myself, that used to cause problems, and it made me be aware of real techniques to help people get rid of a lot of stuff that has been bothering them for years. I think this book opened me a gateway to reach happiness and understanding of life.