A shepherd is someone who is supposed to care, to walk, to watch. Moving for the better is the basis of what he does. After that hill we might find green grass, so we should check it. Being always aware of the multifactor environment that surrounds him and those he cares for, he has to find the best path, not the destination itself, because there is none, everything is transitory. And he keeps showing up and going further, for him and them.