The world’s a headmaster who works on your faults. I don’t mean in a mystical or a Jesus way. More how you’ll keep tripping over a hidden step, over and over, till you finally understand: Watch out for that step! Everything that’s wrong with us, if we’re too selfish or too Yes, Sir, No, Sir Three Bags Full, Sir or too anything, that’s a hidden step. Either you suffer the consequences of not noticing your fault for ever, or one day, you do notice it, and fix it.