a kind of energy.........................

     I'm terribly thirsty now and wish that I could go and dip my face in the river, but I am conscious of not wanting to seem weak.  As I look at Alex and Renias, it appears that in six hours of walking, of intense focus and vigilance, and with no food or water, they have not broken a sweat.  It is a kind of energy I have witnessed in people who have merged "work," "mission," and "meaning."  These people don't take holidays or need days off.  They outwork everyone not from some kind of gritty determination, but from a place of pure pleasure.

-Boyd Varty,  The Lion Tracker's Guide to Life