According to the Igbo mythology, a creator God, Chukwu created the visible universe, uwa. The universe is split divided into two levels. The first level is known as the living world, uwa which includes human-being. The second level is known as spiritual world which includes the sun, the sky, the earth, the spirits of water, forest goddess, the dead spirits, and even those yet to be born. The interesting thing is that each natural components have specific name such as Anyanwu (the sun), Igwe (the sky), and Andala (the earth).
Igbo people believe reincarnation. Reincarnation is a belief that the human spirit will return to another life after death. In Igbo culture, when someone passes away, the spirit goes to the spiritual world. Then, as time goes, those who passed away would born as a baby again.
Chi is a personnel god for individual Igbo people. Igbo people believe that individual’s ability and destiny are assigned to chi. The human spirit mentioned in the last paragraph, is chi. Thus, chi suggests the individual’s fate for the life. That is why Igbo people think chi as personnel god. However, Okonkwo is a character who tries to change the fate. He does not want to just follow the fate. Then, as a result, Okonkwo becomes the one who establishes his own fate. There is a quote demonstrating the relationship Okonkwo and his chi.
“At the most one could say that his chi or personal god was good. But the Ibo people have a proverb that when a man says yes his chi says yes also. Okonkwo said yes very strongly; so his chi agreed.” (Chapter 4, page 27 line 7-10)