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 Clear Body, Clear Mind.
This book really helped me with understanding how the body and the mind is affected by everyday toxins such as preservatives and medicines. Also there is invaluable information about vitamins and a healthy mixture that helps one to sleep soundly at night.