Do we know anything about the life duration of these entities? Not that it really matters, just trying to identify in every detail what we are up "against".

Another disconpuzzling (disturbing+confusing+puzzling) question is: how and why didnt these entities after so many incarnations make it to incarnate as spirits which I translate to the opposite of deception, manipulation and interfering with the natural flow of creational evolvement? Did you say millions or billions of years, Chris?