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 what's behind day-to-day action. What you do can become very disorganized, what you think can become crazy and all that you do can run way off the rails of what you SHOULD be doing. This book tells you how to get life under your control.