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.
Through this book I gained an understanding of people that I never had before. It told me, for the first time, why people have difficulties, troubles, worries, failures and problems and what exactly can be done to overcome them. The scope of these discoveries is very far reaching and important to us all.