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 The Way to Happiness.
This book got me into contact with my ethical nature and I began to realise the value of an ethical code. Prior to this I couldn't really see the value of an ethical code. To me it was at the very least, mildly old -fashioned.