When I first left the organization and started thinking things over, nothing represented the thought-control as succinctly as the oft-used phrase "the understanding," as in the sentence, "What is the understanding of the parable of the sheep and the goats?"
This must boggle the minds of outsiders. It implies that there is a single understanding, which all Witnesses have. Consider what happens in the case of New Light: "The understanding of that scripture has changed [and therefore, your understanding has changed too]." It's as though Witnesses are mental marrionettes, who find out at meeting or in a couple paragraphs of a 5-page magazine article that their understanding has changed. "By the way, you don't think that anymore. You think this. Do we...understand each other?"