ABC's metaphysical thriller Lost makes no secret that it's influenced by such literary sources as Flann O'Brien's The Third Policeman and Philip K. Dick's Valis. We see some Lost characters, such as Ben reading Valis, reading these novels and it is apparent that the Lost writers are teasing us with clues about the metaphysical components that make up the Lost world.
The influence of Philip K. Dick became even more important last night when watching Episode Nine, Season Four's "The Shape of Things to Come," it occurred to me that Ben Linus and his arch rival Charles Widmore are playing some kind of game with set rules and that Widmore broke the rules when he killed Linus' daughter, making Linus change his game. Linus also referred to his daughter, about to be killed by one of Widmore's minions, as a "pawn." What's interesting about all this is that Philip K. Dick envisioned human beings as being pawns in a chess game going on in the minds of two Other Beings.
Lost appears to be matching Linus' chess skills against Widmore's. I wouldn't bet my life on it, though. It's not unusual for the Lost writers to make us feel like we know where we're going only to find ourselves going in the opposite direction--just like the Lost survivors.