Things Fall Apart
who was cheilo and why was she important ?
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Chielo/ Priestess of Agbala (Oracle of the Hills and the Caves)
In normal life, Chielo is a widow and an ordinary woman. But she is also the Priestess of Agbala, and when the power of prophecy comes to her she is possessed by the godhead. She is one of the most powerful figures of the clan; now important decision can be made without her approval.
http://www.gradesaver.com/things-fall-apart/study-guide/character-list/