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: The Fundamentals of Thought.
This book really helped me with the very basics of how the mind works and understanding people better, knowing for sure that I and you are a spiritual being and you can improve. Also to live a happy and prosperous life by knowing the fundamentals of the mind.