In
sailing, heaving to (also heave to) is a way of slowing the boat's forward progress, fixing the helm and foresail position so that the boat doesn't have to be actively steered, thereby allowing the crew to attend other tasks. It is commonly used for a "break" while waiting out a storm, or by the solo sailor as a way to provide time to go below deck or attend to issues elsewhere on the boat (including taking a lunch break).
See more at Wikipedia.org...