 The Igbo religion and traditions are known as Odinani . In Igbo religion the supreme God is called Chukwu ( " great spirit " ) ; Chukwu created the world and everything in it and is associated with all things on Earth . They believe the Cosmos is divided into four complex parts : creation , known as Okike ; supernatural forces or deities called Alusi ; <unk> , which are spirits ; and Uwa , the world . 
