Thomas Pynchon said this quote

Sometimes, down in the subway, a train Maxine's riding on will slowly be overtaken by a local or an express on the other track, and in the darkness of the tunnel, as the windows of the other train move slowly past, the lighted panels appear one by one, like a series of fortune-telling cards being deal and slid in front of her. The Scholar, The Unhoused, The Warrior Thief, The Haunted Woman... After a while Maxine has come to understand that the faces framed in these panels are precisely those out of all the city millions she must in the hour be paying most attention to, in particular those whose eyes actually meet her own - they are the day's messengers from whatever the Beyond has for a Third World, where the days are assembled one by one under non-union conditions. Each messenger carrying the props required for their character, shopping bags, books, musical instruments, arrived here out of darkness, bound again into darkness, with only a minute to deliver the intelligence Maxine needs. At some point naturally she begins to wonder if she might not be performing the same role for some face looking back out another window at her.