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 understanding why my husband (or myself) would become upset and uncommunicative. After reading a few chapters things started making sense. This book helps you understand why people behave the way they do and why it's so hard to communicate sometimes.