Thinking you need rest makes you restless.
Thinking you have to work hard makes you tired.
Thinking you have worked hard brings self-pity.
It is the quality of rest, even if it is short, that helps you to recuperate. When rest is needed, your body will automatically take it. Resting, without thinking about the need for it, is more restful.
— Sri Sri Ravi Shankar, Celebrating Silence