L. Ron Hubbard answered that question very straightforwardly in the chapter "Dianetics" in the book: "Dianetics 55"
" WHY SHOULD ANYONE want to know anything about the Human Mind? And for that matter, why should anyone believe the knowledge of the human mind is either unobtainable or undesirable? ...
The answers are relatively simple. Anyone who knows the structure, function and dynamics of the human mind is very difficult to control. The only way a mind can be controlled is by enforcing upon it ignorance of itself. ...
When one restores full awareness to a mind, one is no longer able to victimize it."
Dianetics is the science of the mind that restores your full awareness so that you are in charge of your decisions, difficult to fool and also very difficult to control.
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