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 Dianetics: The Modern Science of Mental Health.
This book really helped me with getting the first real understanding of what actually makes people tick! This is the owners manual for the human mind. Simply put: you can't function in life to anything close to your potential if you don't know what's in this book. READ IT, APPLY IT and watch your life and the lives of those around you change.