The inner energy within each person is limited every day, and it must be used somewhere. If you don't use your energy on changing the status quo and solving problems, it will be spent on enduring, worrying, and internal depletion. When a person lacks the courage to change, it's not that they aren't consuming energy—rather, they're using the same amount of energy to tolerate the current situation. Enduring itself is a form of consumption, except this type of consumption produces no results. So when facing problems, there are essentially only two ways to use energy: either use it to create change, or use it to endure. Both will deplete your energy, but only change has the potential to create a new situation, whereas mere endurance only allows the problem to persist while continuously draining your psychological resources. If you don't actively invest your attention and energy into focus, action, and decision-making, your brain won't conserve power as a result—instead, it will automatically turn toward repetitive thinking, anxiety, and self-conflict, which is what's known as internal depletion.