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 Self Analysis.
Through this book I can much easier understand people around me. I can also understand reactions from which mood people are in. And instead of being effect of others mood, I can bring other people up to a better mood.
I have also regained much of my memory through drills in Self Analysis.