Final answer:
The "immense discovery" is a pivotal moment in the narrative that reveals a deep insight or epiphany, enriching the understanding of the story's themes and characters.
Step-by-step explanation:
The "immense discovery" referred to in the narrative is a profound realization or epiphany experienced by the protagonist that leads to a deeper understanding of a significant theme or concept within the story. Such discoveries often interrupt the flow of the narrative to provide insights into the characters' thoughts and emotions or to reveal a critical perspective on the societal and moral issues depicted in the text. These epiphanies can range from a personal revelation about one's identity or beliefs to a sociopolitical insight, stemming from the events that transpire in the story.