I think the following links and descriptions are great importance to anyone seeking to rationalise how Hubbard created the great con. Nothing in Scientology is original, unless you count the science fiction of OT III. forwarded to me by an OT III ex Scientologist, he has done some great research, and iin doing so, struck the proverbial gold vein.
Please look at this material and give me your thoughts and conclusions.
For me, this is of great importance.
LRH PR 'tech' is exactly the same as Dale Carnegies 'How to win friends'. LRH reckons he'll "make you sick".
Ernest Holmes to me was LRH's main reference point for an organised religion that offered courses (cheap ones :-) : http://ernestholmes.wwwhubs.com/
William Walker Atkinson (aka Theron Q.Dumont) was another. Used to teach procedures for focusing the mind. Like TR's. http://williamwalkeratkinson.wwwhubs.com
Thomas Troward was the main originator of contempory metaphysics and influenced all these guys. http://thomastroward.wwwhubs.com
Troward discussed the idea of an electronic though detector.
Ralph Waldo Emerson was the American equivalent of T. Troward. Big influence on American Success literature but his prose is a bit harder to interpret given the time it was written. Brilliant man.
In Hubbards time there was a huge amount of these 'New Thought' writers who would give seminars and talks over a day or two in community halls etc. They were entertaining and brilliant men and women. My favorite is Neville Goddard http://nevillegoddard.wwwhubs.com/
Route To Infinity is a complete re-write (in the usual impenetrable LRH prose) of these teachings.
ie. To create the life you want you must visualise/imagine it to be so already and forces come into play to bring the vision to actuality.
The Law Of Psychic phenomena by Thomson Jay Hudson (1893) seems to be the contemporary start point for all ideas about Subconscious/Conscious mind analogies. He called it subjective/objective mind. He was prior to freud as far as I can work out. Bit of a tome but fascinating.