Dave Ramsey said this quote

The weird thing is that the more efficient, on task, on goal you are with your time, the more energy you have. Working with no traction, or for that matter simply wasting a day, does not relax you, it drains you.//Strange as it may seem, when you work a daily plan in pursuit of your written goals that flow from your mission statement born of your vision for living your dreams, you are energized after a tough long day.