In his discussion of Joseph Conrad's fiction in The Political Unconscious Fredric Jameson writes:

This linkage of the sea with capitalism allows Jameson to deal with Conrad's novels (especially Lord Jim and Nostromo) as, to use Jameson's own phrase, socially symbolic acts—the sea is “the privileged place of the strategy of containment” and it provides Conrad a laboratory where “human relations can be presented in all their ideal formal purity.” Jameson has identified nautical fiction's important place in any story of the novel—the confining (yet paradoxically freeing) nature of the sea (and the ship) screens out the extraneous material of the world, forcing confrontation, laying bare power relations and allowing the writer to focus on the human condition. The sea allows for only the essentials: clearly defined hierarchies, and life and death on easy terms. Jameson links Conrad with high modernism and thus with capitalism, but his positioning of the sea in relation to power and history can be, I believe, “read back” and then applied (in a necessarily nascent form) to the literary sea of the eighteenth century.