“If you play a game where scrap pieces of glass are at stake, you will play skillfully. If your expensive belt buckle is at stake, you’ll start to get clumsy. If it’s your money that’s at stake, you’ll fumble. It’s not that you’ve lost your skill. It’s because you are so flustered by things happening outside that you’ve lost your calmness inside. Lose your stillness and you will fail in everything you do.”