I see a person who's life is a mess, and makes the decision to kill herself. The marching line, to me is like people who have lost their lives simply because they don't want them. The ship is an ark to the next life, or heaven. Many people board the other ships, but the person we follow boards a ship alone, and leads the fleet. The fleet leaves the docks (their lives), and journeys into rough waters to start over, guided by will only...whether or not they made it remains to be decided by fate...