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 Introduction to Scientology Ethics.
This book gave me an entirely new angle of approach to the ideas of right and wrong, good and evil, and is also a tool that everybody can use to improve his or her own condition in life. When I was a very green Scientologist I was very unhappy because of earlier incidents in my life. I read this book and applied the principles and it was a great relief for me to realize that it was possible to make up for earlier mistakes and to improve myself.