The pursuit of the White Whale becomes a journey into one man's monomania. Following a great typhoon the Pequod seems to have been transported into another world entirely. In this world compass needle, log and line, forward vision, and mission, all are Ahab's. As if even life and death have been inverted, to be overboard is finally to float, the heavens are pulled down to the depths, and coffins become life buoys. One man's madness, his obsession, are these enough to turn the world upside down?
To look into the eyes of men, of pride, faith, suffering, and finally madness, Melville takes us around the world and into the heart of the sea. Harpooners, mates, and crew present certain essences of human character - all are needed for the successful sailing of ship. Together they pursue one man's goal - even unto death. What strength are all of these mitigating personages in contrast to an overweening mania? Yes, Ahab is something of a tyrant, but perhaps no more so than the passions of any person. Time and again he is given chance to abandon his mission and mania. Yet revenge calls to him.
In the end it is less the overwhelming powerful forces that destroy then our ability to live peaceably alongside them. The world is what it is, so too is the Whale. Our choices are our own - they are the measure of our doom.