Mythology is a collection of myths, especially one belonging to a particular religious or cultural tradition of a group of people–their collection of stories they tell to explain nature, history, and customs –or the study of such myths. As a collection of such stories, mythology is a vital feature of every culture.oseph Campbell believed there were two different orders of mythology: myths that are metaphorical of spiritual potentiality in the human being, and myths that have to do with specific societies. His major work is The Masks of God I-IV.