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 was the first of L. Ron Hubbard's books I read and was so easy to understand and relate to. It helped me greatly to handle problems in my life and to understand the simplicity with which they could be handled. To be able to achieve true happiness with yourself and others is not one of life's great mysteries. It's all there in the book.