That's the best way to know anything, although no one ever tells you that. No one ever says, "Just use the expansive feeling in your chest to understand what's true, and what you want, and where to go, and what really matters," because they're too busy forcing you to learn from books that they're choosing, and pointing at whiteboards that they're writing on, and encouraging you to ask questions from curriculums that they've set. A Room Called Earth