The Council of Ancestors
This is an Evolutionary Journey Through Deep Time with scripted components by Connie Barlow based on Ancestor's Tale, by Richard Dawkins (2004). "Imagine starting back on a journey through time, as if flowing down a watershed all the way to the Ocean of Origin. Other streams join ours, one by one, by measure of their life forms' relatedness to us. Because all the mollusks and arthropods and worms join together well upstream of meeting our branch of the river, they all join our current (rather, we join THEM, as there are more of them than us at that point) as one vast group all together. For this reason, there are only 40 such "confluences" in The River of Life journey". See script for details on conducting the 2-4 hour ritual.