Changes

By having [[Jack]] remove most of his lifeforce[[Spiritus Vitae|life force]], [[Castiel]] is brought to the brink of death and visits the Empty in search of [[Ruby]]. Taking on the form of Meg, the [[Cosmic Entity]] reluctantly directs Castiel to Ruby, who reveals the location of [[the Occultum]] in exchange for Castiel's promise of help in trying to get her out of the Empty. She explains she wants to leave because the Empty is also a place where angels and demons are forced to relive their worst memories in their eternal slumber. However, before he can leave, the Entity begins torturing Castiel. On the orders of the Winchesters, Jack returns Castiel's lifeforcelife force, bringing him back from the Empty.