These are the ghosts of deceased relatives and long-dead heroes. They act as agents for the Great God MODIMO, and hang around the place keeping watch to ensure no taboos are violated. You can tell if they’re getting agitated as they make very strange clicking noises.
Only shamans, prophets and small children can speak the names of BADIMO and MODIMO. Any other utterer will end up as a child in an adult’s body. Shhhh! No name-dropping.