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 different human emotions which has a direct impact with myself and others. It also gave me the understanding of government policies that were being implemented on society which started around the 1950's and by my time were embedded upon society. The mystery of why governments and individuals within those governments treat us as they do were answered in Science of Survival.