* Personal Essay: This is probably the closest fit. Personal essays focus on a specific event or experience and explore its meaning and impact on the writer's life. They are often reflective and introspective.
* Memoir: While a memoir encompasses a larger span of time and may include multiple incidents, it often centers around a specific life event or period that profoundly shaped the author. The incident in question would be a part of a larger narrative.
* Autobiography: Similar to a memoir, but typically covers the writer's entire life. The impactful incident would be one of many, contributing to the overall narrative.
* Narrative Nonfiction: This broad category can include personal essays, memoirs, and other forms of writing that tell a true story using narrative techniques. The incident would be presented within a larger narrative arc.
* Reflective Writing: This type of writing focuses on the writer's thoughts and feelings about an experience. The incident would serve as a catalyst for reflection.
The key is that the writing is *true* and focuses on the writer's personal experience and its significance. The specific genre depends on the scope and structure of the writing.