Understanding comes from awareness, so you can’t make anyone understand what they aren’t aware of. And you certainly can’t make them aware of their unawareness because awareness is the difficult choice to direct focus away from ego and into the true reality. It’s uncomfortable and existentially dreadful. So much shadow, repressed pain, self-deception blocks awareness, so to become aware entails clearing those things. And this isn’t easy by any measure. It can only come from one’s soul.