In life, everything keeps changing, and that change is often shaped by our inner state. For those with shallow composure, even in leisure it's hard to stay calm. Masters of the mind know how to filter outside noise and stay at peace. They take setbacks calmly, stay humble in joy, accept praise modestly, and respond to hardship with composure. They know how to shed distracting thoughts and not let outside trivia disturb inner calm. Only a tranquil heart can resist outside interference, focus on what's before you, and let things come and go naturally.