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 a body becomes clouted with toxins and drugs. I also learned how to free yourself of those toxins and drugs and give you back your native abilities so that those abilities can be used and trained better to make yourself a much more capable person. It gave me a better reality on how the body and body metabolism works and basically how the body can heal itself through a clearness of mind.