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 find a purpose in my life. I was offered this book to read when going through a very difficult period in my life when nothing really had any purpose. After reading the book all this changed.