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 Modern Science of Mental Health.
This book really helped me with my understanding of the human mind. I understood that there is true knowledge of these things. I understood what it was that affected people in a negative direction and made them do senseless things. And then I saw that there was hope for humanity - that there is a way out for all people.