With past lovers, lost but not forgotten, a figure, face or gesture reminds us poignantly at times of their missed beauty, warmth or power to give us pleasure.
Now you, my only brother, may be seen, in people who all seem to represent a part of you - your soft grey hair, loose-jointed walk or bright, sad stare.
But even if these different traits, seen at different times, in different places, could all be brought together, they wouldn't bring you back again, and when I see them, I miss you more than ever.