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: A New Slant on Life.
This book really helped me to put some basic truth in my life, regarding human relations, the two rules for happy living. If you just use that in your life, boy, you are ahead of the game.