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 my understanding of people. It gave me a very comprehensive grasp of people and what really makes them tick . It gave me vital tools on how to deal with people. It gave me an understanding of the various emotional tones of people and how to deal with these tones in daily life ie. relationship, business, home, etc.