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.
This book really helped me with getting the knowledge and understanding of how the human mind works. It made the entire subject seem simple and useable. Without it, just like so many of us out there, I would still be walking around wondering about it all. Now, I have a greater understanding of myself and it is possible to be super intellegent about life's mysteries.