Dear big sis, for the first 35 years of my life, you were there--playing together as kids; fighting, as teenagers do, over clothing; and as adults, celebrating many holidays in your home. But after having your own kids, you packed up your family and started anew in New Zealand. I was happy for you, but a void had been created--gone are happy hours together on warm summer nights; no more birthday parties and babysitting; my lovely niece and nephews growing, out of sight. The times I've visited have been glorious, but each time I leave...