" For a long time he’d been periodically preoccupied by the idea that when someone you loved died, you could spend the rest of your life searching the world for that person and yet you would never, ever find him or her, no matter how many obscure places you went to, no matter how many caves you slipped into, or curtains you parted, or houses you entered. The dead person truly no longer existed, and while as a matter of science this fact seemed so simple, it was unaccountably hard to accept it when the person was someone you loved.
But the thing was, after someone you loved died, the people you still could see—a.k.a., the living—might occasionally almost seem to be the person you longed for. There would be a startle of similarity, a flash of familiar head-shape or squirt of laughter, and you would whip around so hard, only to find a person who was not in fact the right person at all. "

― Meg Wolitzer , The Female Persuasion