Ok but when a guardian dies their ghost breaks down their body and things around them and then recreates the guardian exactly. So how can they still be alive unless their consciousness is brought somewhere else or downloaded into the ghost itself. Edit: Also when a guardian is killed they have to wait different amount of time to revive and can sometimes not even revive themselves. So is being revived a conscious act, brought on by ghosts who just so happen to know exactly when the guardian wants to be revived without prior knowledge, or perhaps brought on by external forces such as another guardian's light.