The Lead / Endeavor Spectrum

Exertion
The act or an instance of exerting, especially a strenuous effort.
The use of physical or mental energy; hard work;
(Doing for the sake of achieving some end.)

Play
Activity engaged in for enjoyment or recreation.
(Doing for it's own sake)

Rest
Cessation of work, exertion, or activity.
(Refrain from pursuing. Contentment. Being at peace with what is.)