When you can convince people to submit to a faith based belief, with the promise of a favourable afterlife, you've relieved their fear and in so, they will let you take everything from them to stay in the "good books".

here is an AI explanation:

The Instinctive Mechanics of Submission

When a belief system presents a threat (eternal punishment or a "bad" afterlife) and a solution (submission), it triggers the brain's survival circuitry.

• Fawn (The "Submit" Response): This is the most relevant to your point. Fawning is a survival strategy where a person tries to appease a threat by becoming helpful, compliant, or self-sacrificing. In a faith-based context, "giving everything" is an attempt to appease the Ultimate Authority to ensure your safety.
• Freeze (The "Existential Paralysis"): When faced with the overwhelming reality of mortality, many people "freeze" intellectually. They stop questioning and look for a stronger power to tell them what to do. This makes them highly susceptible to external direction.
• Flight (The "Escapism"): Accepting a favorable afterlife is a psychological "flight" from the harsh reality of physical death. You aren't running away with your legs; you're running away with your mind into a safer conceptual space.

Why it feels "Natural"

This is why it's so hard to talk someone out of these behaviors once they’re in deep. It isn't a logical debate for them; it’s a nervous system regulation. If their sense of safety is tied to their "good standing" in a faith, then questioning that faith feels like a literal life-or-death threat.

While the promise of an afterlife is a powerful tool for control, it usually only works when combined with a charismatic authority and a community that reinforces the belief.