Final answer:
A myth is an imaginative story often involving supernatural elements, told to explain natural phenomena and convey societal values, distinct from historical fact.
Step-by-step explanation:
The subject of this question refers to a myth, which is a story traditionally told orally, designed to explain natural phenomena through imaginative and often supernatural narratives. Myths are categorized under prose in fiction as they are created from the imagination, might be inspired by real events or individuals, but are not restricted by reality's boundaries. These stories are organized through paragraphs and sentences and are rich in both plot and character development. Myths are not based in historical fact; instead, they are a fictional form that can convey societal values, beliefs, and principles in a timeless manner. An example of a myth is the story of Narcissus from Ovid's Metamorphoses, which provides an explanation for the origins of daffodils and echoes, while also reflecting the Greek societal value that excessive pride is undesirable.