In the history of humanity, the human groups and the cultures that succedeed during the millennia, in various regions of our planet, have always preserved their myths. The myth is a constant of the sacred and therefore always in the heart of every religion and civilization linked to it. The Dictionary of Myths leads to the founding heart of every civilization. Basically the myth is a story that tends to unfold the origins of a people and a culture, but is the myth real? Moreover, the myth establishes the reality of a people. Without the myth one culture is dangerously impoverished: "poor are those who lack songs"…The myth sometimes anticipate the same religions, sometimes founds them or accompanies them, sometimes a new myth creates a cultural revolution and produces an epochal change.