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 Scientology: A New Slant on Life.
This book really helped me with my attitude toward life. It gave me hope in a world that has very little hope. It made me realize that there are answers to vital questions. Reading it was like a breath of fresh air.