In school I ended up writing three different papers on "The Castaway" section of Moby-Dick, the chapter where the cabin boy Pip falls overboard and is driven mad by the empty immensity of what he finds himself floating in. And when I teach school now I always teach Crane's horrific "The Open Boat," and get all bent out of shape when the kids find the story dull or jaunty-adventurish: I want them to feel the same marrow-level dread of the oceanic I've always felt, the intuition of the sea as primordial nada, bottomless, depths inhabited by cackling tooth-studded things rising toward you at the rate a feather falls.