The narrator in Premature Burial spends time at the beginning of the story

After offering some examples of events that are interesting because they are true, such as the Lisbon Earthquake and the London Plague, the narrator adds that false accounts that attempt to imitate such horrors are abominable. He observes that his examples are fascinating because of the extent of the damage but explains that individual stories of suffering are often far more intense while thanking God that large groups never suffer as much as some individuals have. He states that being buried alive is one example of intense suffering that sometimes occurs when a person temporarily loses his vital signs, and he asks where the soul goes during that moment of near-death.

Explanation:

I don't know what specifically you were asking for, but I hope this helps in some or any way.

first of all the mood needs to be defined: it is obviously a mood of deceitful relief and serenity. why? because the cape horn is one of the most violent maritime regions of earth and although it has been left behind, it is a personification of ahab’s delirium and the fact that the end of the passage speaks about it about being “hidden” but “raving” immediately conveys the feeling the calm is not permanent but fleeting.

furthermore, the oxymoron “mild stun'sails” is the first instance of such feeling as the adjective “mild” is associated with “stunned” underscoring the fleeting nature of this “tranquil” moment. and the contrasts keep piling up, with the opposition between “dark den” and “blessed light and air” to end with the final conclusion that leaves the reader with the uneasy knowledge that this is just a reprieve.