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.
I highly recommend this book to anyone interested in the basics of life. Life is a game with players and rules. If you know what part you are playing and what the rules are, it can be lots of fun. I very much enjoyed this book.