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 Scientology 8-8008.
This book really helped me to realize that I had my attention stuck on a past relationship that I had never ended to my satisfaction. I contacted that person and said all the things that I had wanted to say in the past but never had. This ended the cycle for me and now I don't have any attention stuck on that person. It was such a relief to be able to fix it.