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: The Fundamentals of Thought.
This book really helped me with understanding how to improve my life and the lives of others. This book describes how life works and how to change men, women and children for the better and attain success in life.