Metaphors are one of the most extensively used literary devices. A metaphor refers to a meaning or identity ascribed to one subject by way of another. In a
metaphor, one subject is implied to be another so as to draw a comparison between their similarities and shared traits. The first subject, which is the focus of the sentences is usually compared to the second subject, which is used to convey a degree of meaning that is used to characterize the first. The purpose of using a metaphor is to take an identity or concept that we understand clearly (second subject) and use it to better understand the lesser known element (the first subject).