Germaine Dierterlen talks about Dogon mythology at a conference on the Bandiagara cliffs. The Songo canopy is a sacred site in Bandiagara. Its walls are covered with paintings depicting the different phases of creation. A little further on, in a cave near the village of Bongo, symposium participants are discussing the Tellem, the people who lived in the houses built into the cliffs before the arri