"Simple people and aged people seem to live quite serenely in the moment; and that is what I believe we ought all to attempt, for most moments are bearable, if one only does not import into them the weight of the future and the regret of the past. To seize the moment with all its conditions, to press the quality out of it, that is the best victory." Benson.

  I think this picture captures being in the moment about as good as anything can.