An Opele (spelled Opuele or Ocuele in Latin America) is a divination chain used in traditional African and Afro-American religions, notably in Ifá and Yoruba tradition.
A Babalawo (diviner) uses the Opele in order to communicate with the spirits who are able to identify the causes and solutions to personal and collective problems and restore harmony with the spirits.
References
Opele Wikipedia(Text) CC BY-SA