Harris is making a subtle distinction that most people miss: he's not simply saying education should make you look outward instead of inward. He's suggesting that self-reflection without understanding the world becomes narcissism—a mirror that traps you. A window serves the same reflective function (you see yourself in glass), but it simultaneously reveals what lies beyond, connecting your interior life to the exterior one. When a struggling student finally understands why their parents worked particular jobs, or how historical decisions shaped their neighborhood's poverty, they're no longer just seeing themselves; they're seeing the conditions that made them, which is entirely different. That shift from self-absorption to contextual awareness is what separates mere introspection from actual wisdom.