The Occulent is an object that was first seen in the episode Eye of the Beholder.
It belongs to the sentinels (Sanctuary Guardians), giant rock creatures and protectors of the Churls. The Occulent is sacred to the Churls and they would attack anyone who might attempt to steal it. Eventually one was eaten up by Baz-El in the episode Eye of the Beholder and he was attacked by the Churls because of it. When they were being attacked by the Sanctuary Guardians Julie forced Baz-El to vomit it out thereby restoring peace.