The Haenyeo culture on Jeju Island is very different than that of mainland Korea, a patriarchal world. It reflects an ancient past, stemming from a foundation myth where women and men were equal. In the Three Clans Myth, three brothers reach an uninhabited Jeju and survive on it by hunting. One day, a box arrives on the island, containing three young women, as well as five types of grain, calves, and colt. Each man is matched with a bride, and together, the couples turn Jeju into a rich agricultural land. Since myths are often used to validate culture, the Three Clans Myth would reflect early Jeju culture, one where men and women together contributed equally to the prosperity of the land, and the folklore of the Haenyeo is an expression of what the people on Jeju Island value and believe.