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.
It means what it says. This book enables you to assess life and how best to handle your immediate environment. Remember to have your dictionary at hand for any mis-understood words that you may come across, only to ensure you get the complete picture of what L.Ron Hubbard has written.