This painting appears as the frontipiece in The Feathered Sun (World Wisdom, 1990). It is titled “The Council”, and its date is given as 1963. In it, three Plains chiefs pass the sacred pipe between themselves while sitting before a council fire.
Christentum – Islam: Ausblicke auf eine esoterisch Ökumene (e-Book)
In this work, Frithjof Schuon compares Christianity and Islam and also looks at confessions within these world religions: Protestantism, Orthodoxy, and Shiism.