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 Science of Survival.
This book really helped me with understanding people better. This book explains in accurate detail how you can understand people, why they behave the way they do, what sort of people to trust and all sorts of incredible data that can actually be used to predict human behavior. It has brought a greater understanding of man to me, and with it a greater love and respect to them.