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 understanding the basics of life and existence and helped me to grasp my own source of beingness and my role in creating my own life and the society in which I live and help others to achieve the same.