I could no longer remember the way my mother's eyes looked before the slowing. Had they always been so red around the edges? Surely, those pockets of gray beneath her lower lashes were new. She still wasn't sleeping well, but perhaps what I was seeing was just age, a gradual shift that I'd failed to register. I sometimes felt the urge to study recent photographs of her in order to locate the exact point in time when she had come to look so weary.