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: A New Slant on Life.
This book really helped me with understanding the things that other people do. It's more then just some big words written to sell a book. It's a easy to understand, down-to-earth book, written to give the reader an understanding of himself and how the world works around him. It gives one an understanding of life and how to live it. If you've ever wondered who some things just don't make sense, then this is the book you have been looking for.