WT "Theology" is an incoherent, incomprehensible, illogical mess of contradictory, self-serving doctrines, policies, platitudes, rules and regulations.
And what usually happens is JWs will find some tenet hard to understand, and thus blame themselves for being stupid. Instead, they should realize that it's not that the concept is particularly difficult to understand, per se, but that the concept IS goofy and unsound, and should be dismissed as illogical (i.e. internally inconsistent).
Of course, they never get that far, as they look around the hall and see a bunch of heads bobbing in agreement without thinking, all falling victim to a psychological phenomenon termed pluralistic ignorance, resulting from having entered a spiral of silence. The last one pretty much nails JW (cultic) group dynamics to a tee; it's worth a look, as it's not just JWs: any group tends to fall into this trap (including online forums).