Bellow captures something harder than nostalgia—the quiet terror of being forgotten, even by yourself. Most of us think memories matter because they're pleasant or instructive, but he's pointing to something fiercer: that our recollections are the only proof we've lived at all, that we've mattered to someone or something. A parent reviewing old photographs after their children have moved away isn't simply feeling sentimental; they're holding onto evidence of their own significance, proof that they once shaped a young person's world. Without those stored moments, we risk becoming ghosts in our own lives, watching ourselves fade into background noise.