Igbo Dualism and Àlà

Photo: Ugonachomma Igbo art piece of a man-woman couple, carved to the average person's height. British Museum.

So, in summary, Igbo cosmology is dualism, the universe is ultimately made up of two complementary and opposing primordial forces, often represented as male and female, it is how everything is equally paired.

It's the philosophy of balance, of the mortal realm and the spirit realm, for example, women's and men's parallel and complementary organisations and initiations, okenye, oke ibiri; daada, deede; ọzọ, ịyọm; ọmụ, obi; places for living and sacred groves for nature, etc.

Nne ahịhịa n'agwọ oke ahịhịa, female plants are antidotes to male plants, and vice versa.

That being said, it's now a question of whether Chi na Eke were seen as ontological concepts rather than deities, if the former, then Chi na Eke (and Chukwu) is not the supreme Igbo deity, Àlà, Ànà, Àlị̀, Ànị̀, the Earth Mother, is the recognised supreme Igbo deity in general.