I have a history with you.  It makes a difference.  I have to work on it.  Communicate with you periodically.  It is those histories that form your roots.  Form enough and your roots go deep.  It is those invisible ties that make you feel attached to an area.  And roots take time (and energy and effort).  Ultimately that is the only thing that matters:  the people you have reached out and loved.  That is your true legacy.  The memories you have created in loving others.