Ahab's struggle and death can be seen as a metaphor for that of all men: contending, with imperfect strength and knowledge, against forces that are too big to comprehend or ever hope to defeat (nature, fate, death). Tashtego, who earlier was "reborn" in Chapter 78, now dies. He has gone through the cycle of life on the ship. And his death is similarly metaphoric, as he hammers into place the flag that will identify the ship—to defiantly claim a unique place for him and the ship in the world and in existence—even as the ship is going down, as existence slides soundlessly into the water. And with the accidental killing of the bird the Pequod goes down with a final Biblical interpretation.