Fishing has existed as a means of obtaining food since the Mesolithic period. By the time of the Ancient Egyptians, fisherman provided the majority of food for Egyptians. Fishing had become a major means of survival as well as a business venture. Fishing and the fisherman had also influenced Ancient Egyptian religion Mullets were worshiped as a sign of the arriving flood season Bastet was often manifested in the form of a catfish. The method Amun, in ancient Egyptian literature, created the world, is associated with the Tilapia's method of mouth-brooding.