the allegory of Plato’s cave was described as prisoners being chained and have no choice to watch the shadows of people/animals due to a fire and could also hear their voices. They had no communication to the outside world. Susan Sontag use the metaphor of Plato’s cave to describe the role of photography as the different lighting from inside the cave and the direct sunlight from outside.  She compares the allegory of these shadows to photos and reality, saying that photos are like shadows.