A cargo cult is a kind of Melanesian millenarian movement encompassing a diverse range of practices and occurring on the island of Tanna in Vanuatu. The name derives from the apparent belief that various ritualistic acts will lead to a bestowing of material wealth "cargo".
Cargo cults often develop during a combination of crises. Under conditions of social stress, such a movement may form under the leadership of a charismatic figure. This leader may be "The Man".
And it was the art theme of Burning Man this year.