Many (MANY!) years ago I tried to research it. I got to a part in the writings where they were saying that two men were talking to me in my ear. That's when I closed the book and returned it to the library. At least that's what I remember about it.
I know many Scientologists, and 3 of my family members were in it for many years. 1 friend and 1 family member, in order to quit the church and retrieve their un-spent money, had to agree to sign a "Enemys of the Church" list and were declared suppressives.
What Tom Cruise was not telling you, because if he did, he knows he would sound nuts:
1. Scientoligists do not just believe psychiatrists use incorrect science. They believe they are evil. As evil as any other evil person. They call that evil "suppressive".. Psychiatrists and psychologists are suppressive persons and must be stopped and thwarted.
2. Whenever you find a "suppressed" person, that is to say, a person who has multiple "engrams" (which will need to be cleared by expensive auditing-- an E-meter--and the 2 tin cans) "connected to that persons lines" (scientology phrase)you must first search for a psychologist or psychiatrist. Most likely you will find one in the persons family or circle of friends, or the person is seeing one, or has seen one... They must disconnect, as a first order and first step in getting better.
3. When pressed on this issue, or other issues such as "Xeno"--(all humans -souls/minds-- were planted on Earth, in a volcano, by a evil suppressive tyrant call Xeno--and frozen in ice, the volcano then erupted, and this caused the very first and most important engram in all living humans. This event can only be "cleared" by a qualified (under extensive e-meter auditing) by a Scientology auditor. Until you reach the level at high OT (operating thetan)level in Scientology, and the expenditure of many thousands of dollars, you will not be told of this event. Indeed, they will deny this belief up and down and sideways, that this is not what they believe.. they will scoff at you.. and say you are spreading mis-information about the church.. The reason they do this, is they believe that until this event is cleared in each human, when they hear about it, they will go into a psychic break, and will never be able to be cleared.
Tom Cruise mentioned many phrases which are drilled into church members, as in when he mentioned that Lauer was being "reasonable". That is looked down upon, indeed to be reasonable in the Church is to open oneself up for ridicule.. The word to them is an insult. They see it as a compromise of the truth.
They drill each other in expensive lessons on how to get their point across and win just these types of conversations, all the while, not giving away Church secrets, or beliefs.. They would say Lauer is clearly a suppressed person, since he must have family members connected to psychologists--and hence connected to his lines.. ONe must first determine the "tone" level of such a suppressed person and raise him up the "tone scale".... Grief and apathy are low on the tone scale, anger is quite high.... so getting a person angry is considered a good deed. you are bringing them up the tone scale...
oh man I could go on and on, but my Sunday beckens.. have a great day all.