Unfortunately, there is no specific story titled "The Ocean" by Nathaniel Hawthorne. Hawthorne did write about various maritime themes in his works, such as in "The Custom House" and "The Scarlet Letter," but without a specific story called "The Ocean," it is not possible to determine a central theme for it.
I'm sorry, but I couldn't find any information about a short story called "The Ocean" by Nathaniel Hawthorne. Nathaniel Hawthorne is well-known for his works such as "The Scarlet Letter" and "The House of the Seven Gables," but "The Ocean" does not appear to be one of his recognized works.
