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 with getting some basic tools to be able to change conditions for the better in various aspects of my life from my marriage to my job and even helping to understand and get along well with children. Just like building a well-constructed house, one must have tools to build a successful life!