Thanks James
Another interesting thing I have observed is control by offer of resolution. If religion wants to control a neurotic, they just find out what that the fears are and offer solutions. Example: fear of financial insecurity - the guru simply promises a soon to arrive new world where the worthy will be rich. To be seen as <worthy> a disciple serves the guru now. Service translates to book purchases, donations, and free labor on building projects the guru holds title to.
A big offer of resolution is the offer of justice. The guru learns the disciple's resentments and shows the disciple how the focus of her resentment will be killed at Armageddon by the same deity using the guru as a channeler. If the disciple is faithful to the teachings of the guru she will get to prevail over those she resents. She works for the guru for the promise of revenge.
Many work for free for their guru to quiet their fears of the reality of death (mortality). If the disciple works hard enough, long enough and ignores enough errors and failures and abuses she will survive Armageddon and live in happiness forever without ever dying (immortality).
It is easy to see why disciples have a difficult time thinking about looking for a replacement when they consider leaving their guru's group. They are trying to replace a guru with direct access to the deity and they are trying to replace a promise of revenge, wealth, power, prestige, health, happiness, and immortality.
They are forced to look at another guru group as a replacement because no respectable group makes all those promises. A few are forced to look at reality.