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 to realize myself as a Spiritual Being and nothing less. It gave me insight into myself that was clear, concise, and applicable. The idea is so simple to grasp that anyone can understand what is being suggested. Just make sure that you have your dictionary handy in case you run across any “foreign” words!