To let go isn't to forget, not think about, or ignore.  It doesn't have any feelings of anger, jealousy or regret.  Letting go isn't winning or losing.  It's not about pride.  It's not about obsessing or dwelling on the past.  It isn't about loss and it's not defeat.  To let to is to cherish memories, but overcome them and move on.  Letting go is accepting.  Letting go is having the courage to accept change.  Letting go is growing up.