This document discusses literary foils and mirrors. Foils are pairs of characters whose differences illuminate each other's important characteristics. Examples given are Scar and Simba from The Lion King, and Katniss and Peeta from The Hunger Games. Mirrors are characters who have similar forms or functions but oppose each other in some way. While foils are traditionally considered opposites and mirrors the same, the terms are related as they add depth to stories by allowing appreciation of characters and revealing themes. Contrast between characters, like heat providing comfort in cold weather and a cool breeze being delightful in summer, gives each more meaning.