maybe instead of theatre its more about rituals or ceremony like a shaman or the chess player or a scheme...

About the photo: Ainu Bear-Festival. The matting wall is hung with various implements and fetishes used at the festival. The men are eating the flesh of the slain bear. They are supposed to be the guests of the bear. See also an episode from the Kalevala for a curious episode with a bear who gets invited to a feast....Perhaps the book titled 'To Serve Bear' should have been a giveaway.
http://www.sacred-texts.com/sha/index.htm#aboutphoto