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 Dianetics: The Evolution of a Science.
This book really helped me with understanding the mechanics of the mind and the nature of the mind. Further, I confirmed what I know to be true about myself as a spiritual being. The book is very easy to read and understand. When I first read it, I thought to myself, " Finally! A book that speaks the truth and speaks to me!"