Each of the many ethnic subgroups in Madagascar adhere to their own set of beliefs, practices and ways of life that have historically contributed to their unique identities. However, there are a number of core cultural features that are common throughout the island, creating a strongly unified Malagasy cultural identity. In addition to a common language and shared traditional religious beliefs around a creator god and veneration of the ancestors, the traditional Malagasy worldview is shaped by values that emphasize ''fihavanana'' (solidarity), ''vintana'' (destiny), ''tody'' (karma), and ''hasina'', a sacred life force that traditional communities believe imbues and thereby legitimates authority figures within the community or family. Other cultural elements commonly found throughout the island include the practice of male circumcision; strong kinship ties; a widespread belief in the power of magic, diviners, astrology and witch doctors; and a traditional division of social classes into nobles, commoners, and slaves.