Symbol

In the arts, "symbolism is the use of a concrete element to represent a more abstract idea," and a symbol is the element doing that work: "the use of objects, people, or ideas to represent something else," where a symbol "isn't just the thing itself; it stands for something beyond its literal meaning." The stock examples hold because they are old: "a red rose often symbolizes love and compassion," a dove, peace. A symbol differs from a metaphor by persistence: a metaphor acts once inside its sentence, while a symbol accrues meaning each time the story returns to it.

That persistence is why symbols live next door to the motif, the recurring feature that carries them, and to theme, the idea carried. The craft risk is the private symbol, one the writer never seeded; readers read it as decoration. The fix is recurrence with variation, not explanation.