Belief corral
An existential enclosure for confining sheeple, precluding independent thinking that might lead to freedom from servitude to, for example, religion.
When I started pointing out the way Christianity had co-opted longstanding cultural traditions in order to consolidate its power base, and how little of the 'unique' aspects of his religion were in fact unique, I realized I had wandered out of his belief corral - I might as well have been talking to myself.