The energy within a person is limited each day, and it will inevitably be expended somewhere. If you don't use your energy to change the status quo and solve problems, it will be consumed by endurance, anxiety, and internal drain. When a person lacks the courage to make changes, it's not that they're not consuming energy—rather, they're expending that same energy on tolerating their current situation. Tolerating itself is a form of consumption, only this consumption yields no results. So when facing problems, there are essentially only two ways to expend energy: either use it to create change, or use it to endure. Both will deplete your mental resources, but only change can potentially create a new situation, while mere endurance only allows problems 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 save energy as a result—instead, it will automatically turn toward repetitive thinking, anxiety, and self-conflict, which is what we call internal drain.