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 Scientology: A New Slant on Life.
This book really helped me. There is so much basic information in this book that is incredibly essential for everyone in the world but which is overlooked by people. Without this data, we (the world) would be lost.