Final answer:
A personal narrative is a story or account of a personal experience that illustrates the central idea of a text. It includes detailed descriptions and follows the narrative arc.
Step-by-step explanation:
A story or an account of a personal experience that illustrates the central idea of a text is a personal narrative. Personal narratives are a form of nonfiction writing that recount events or incidents from the author's life. They often focus on a single moment in time and include detailed descriptions of characters, setting, and sensory details. It is narrated in first-person and follows the traditional narrative arc of exposition, rising action, climax, falling action, and resolution. It can also include memories, anecdotes, and an overarching theme.