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.
I was involved with drugs and had some bad experiences with hallucinogens - I would feel like "I was going to die" and this feeling would reoccur. Dianetics cleared up the problem and I learned the source of it and it vanished forever.