At the Back of the Black Man's Mind

Published in 1906, this book looks at Bantu and Yoruba spiritual practices and philosophy, including nature worship, sacred kingship, and shamanism.

By reading this book critically we can glimpse a system of nature worship, sacred kingship, and shamanism from before the colonial era, and get a hint of a very complex philosophy of esoteric correspondences which rival the better documented systems (e.g. the Upanishads, the I Ching and the Qabalah).