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 Problems of Work.
This book really helped me with the problem that I had with exhaustion. I had thought it was due to working long hours, having a hard day, not enough sleep, etc, etc, and often wanting only to go home and watch television or go to bed. Since reading the chapter in Problems of Work, regarding exhaustion, I was able to look at it with a totally different viewpoint and there was something very practical I could do about it. I say no more. Read the book.