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 many basic principles of Scientology and of life. There is a chapter on "Two Rules for Happy Living" - which to me are "peaks of Wisdom" that to this day I use consistently with success.