According to one of the many Oxford dictionaries, an allegory is “A story, poem, or picture that can be interpreted to reveal a hidden meaning, typically a moral or political one.” The key phrase in this definition is “a hidden meaning,” which means that there is one meaning to glean from the “story, poem, or picture…” While a metaphor is, “a figure of speech in which a word or phrase literally denoting one kind of object or idea is used in place of another to suggest a likeness or analogy between them… figurative language,” according to Merriam-Webster.