How does Robert Bolt use imagery in A Man for All Seasons?

In an example of Bolt’s designs for Brechtian theories to be applied to the production in which emotional distance is create between audience and the character for the purpose of forcing a more intellectual engagement with the material, playwright Robert Bolt outlines the predominant imagery he has included within the play. That imagery is one associated with recurring motif regarding water and the unsteady footing one has aboard a ship trying to navigate through dangerous water and precarious situations.