Joie de Vivre
-- (from urban dictionary) :)
a delight in being alive; keen, carefree enjoyment of living. Hearty or carefree enjoyment of life. A love of life. From French, meaning “joy of living.”Joie de vivre, as one scholar has written, "can be a joy of conversation, joy of eating, joy of anything one might do… And joie de vivre may be seen as a joy of everything, a comprehensive joy, a philosophy of life."