The word “enthusiasm” comes from the Greek, enthousiasmos - to be possessed -- en theos, “in God.” What are you enthusiastic or “in God” about?
Renewing our calling, and so, reigniting our passions, enables us to spark our own enthusiasm and, just as importantly, the enthusiasm of young people. The actual stories we tell may be forgotten, but our living passion is an inspiring power.
Passion is inextricably linked to vital aging. New elders with a real zest for the second half of life draw upon their passions to keep them going while contemporaries are slumbering. They are passionately growing whole, not old.
--Quoted from Claiming Your Place at the Fire by Richard Leider and David Shapiro (pg. 101)