“It is the first visit in many years for your son, finally a citizen of his new country and free to travel, and you try to suppress your undercurrent of resentment at his decision to absent himself from your presence in so devastatingly severe a manner. You feel a love you know you will never be able to adequately explain or express to him, a love that flows one way down the generations, not in reverse, and is understood and reciprocated only when time has made of a younger generation an older one.”