Originally Posted by
Steakhouse
Just a heads up, I'm gonna be dropping SPOILERS like bombs in this post so if you haven't read the following library of books and and don't want anything given away, please skip over this post:
Legion
Mechanicus
Necron Codex
Xenology
It was revealed in Xenology, well more implicitly implied then actually stated, that the Emperor is actually one of the old ones. A tablet toward the end of the book tells the tale of the War in Heaven. At the end of the war many of the surviving Old Ones took on weakened forms to elude the C'Tan and their Necrontyr minions. A final piece of the tablet clearly shows an Old one taking on the form of a human infant. The Emperor was one of them, and he's guided humanity from their birth (which was likely also his doing).
This is also obliquely corroborated in Legion, where the Eldar leader of the Cabal, a group of like minded alien interests have attempted to steer the course of events in the galaxy to stymie the Ruinous Powers wherever possible. Humanity they learned through their scrying, would be pivotal in either leaving chaos weaker then ever before, or handing them their ultimate victory. No matter how much they meddled and applied their influence to the fledgling species however they could not alter humanity's path toward the future, describing their actions as being "like telling the tide to turn back". Either that was a fate beyond even the Eldar and Cabal to meddle with, or a vast power was protecting and guiding them. I lean toward the latter, though I'll admit one could claim Tzeentch's hand was at work.
It is already known via a vision in the book Mechanicus that sometime in the middle ages the Void Dragon descended to Earth, looking to use the planet as a safe haven while it went dormant along with the rest of the surviving C'Tan. It was wounded, or damaged, though I don't recall the book stating why. At any rate and knight in the service of a local lord rolls up on it and appears to slay it. I'm gonna say that again, a KNIGHT, as in a dude in 14th century plate armor, battled and defeated the VOID DRAGON, a star devouring GOD with LIVING METAL FOR A BODY. It was clearly alluded that the knight was in fact a younger Emperor, though if I'm right he had already eons, epochs if you will, under his belt. The Emperor then delivered the near dead Dragon to Mars and sealed it away, knowing that in another fifteen or so centuries he would have a group of people who had been listening to that monster's cybernetic dreams and could create the fantastic technology needed to power his crusade into the stars.
Do you understand how INSANE that is? How far sighted the Emperor must be to plan out even that single step in a plan that would eventually lead to the uniting of the entire galaxy? In Legion there's a moment where John Grammaticus, an alpha grade Psycher, though possibly higher, meets the Emperor face to face. John brushes against the God's mind briefly and describes him as being the most bloody minded psychopath the universe has ever produced. The Emperor thinks, if it can be called that, in terms of entire planetary populations for cost/benefit analysis. He's willing to throw away trillions to achieve even simple but necessary goals. He is not human, he does not think in human terms or time spans.
So lets talk about those plans. At this point I'm going to be deviate from actual sources, for the most part, and start laying out where I see the Emperor and his strategy going. If you guys see any flaws in my logic, please point them out.
The Emperor developed the pre-heresy version of his Imperium as a secular society, where fantasies such as magic, spirits, religions, gods, and even himself, were not to be worshiped. They were to be be cast aside in favor of the "Emperor's Light" which at the time meant the "Light of Reason". Science. Prosperity. Things that a people clawing their way out of a dark age of technology could get behind. This version of his empire was, whicle not exactly a lie, was a falsehood meant to jump start what would eventually come. He obviously knew of the creatures in the warp, and the faith/strength of will needed to combat them directly. However if the grand majority of your society 1) doesn't know about the threat, and 2) denies the threat the belief and worship it requires to be potent, then you have effectively stymied the opponent, at least for a while while greater progress is made. Of course this strategy wasn't going to last forever. The further flung the crusade became, the more and more likely it was going to be that it was going to encounter some form of warp taint, and once that taint takes root there's very little you can do to burn it away aside from weaponing your people with the strength of faith they would need to survive EN MASS. not on the individual scale mind you, not even on the planetary scale, but once again in terms of whole star systems. I believe the Emperor always intended to make the switch from secularism to an ecclesiastical society when the need presented itself. His vision/knowledge of the future and what will come to pass has proved itself too potent for too long not to buy into this theory. Afterall it's not like he stopped being the all powerful Emperor once the Crusade got underway, hell he didn't stop once he was mortally wounded by Horus.
Which brings me to the Heresy itself. Based on that previous assumption that the Emperor is an Old One, with the the ability to predict and influence future events on a galactic scale, it seems nearly impossible to believe that he didn't see Horus's betrayal coming. In fact I believe, much like everything else he had accomplished over the last thirty centuries, the Emperor knew about it because he had planned it himself, and groomed Horus for that very role. To understand why the Emperor would want to see the galaxy burn, to provide the very real possibility that chaos could rise acendant over all, you have to go back to WHAT HE IS! In the Necron Codex the Old One's are described by the short lived Necrontyr as ultra intelligent mystics with immense longevity. The warp itself was at their beck and call allowing them to cross the incredible distances in the universe with but a step. These beings did not fear the warp, and likely still dont even though it has now become a boiling ocean filled with dangerous entities. The only thing they likely fear are the C'Tan and their Necron armies.
Everyone knows the Second War in Heaven is coming. The Necrons are rising once again. They wiped out the Old One's civilization once before and nearly hunted their species to extinction. They forced the Old One's to weaponize the races they had given rise to, creating psychically attuned races to counter the warp null C'Tan. The Eldar, the Krork and the Jokaero were all hastily developed and released on the galaxy at large in an attempt to slow the advance of the C'Tan and while it wasnt them, but the newly birthed warp nightmares that ended the war, it still shows how much Life the Old One's were willing to sacrifice to achieve victory.
So what if the Emperor planned it all? Not just the Void Dragon and the Mechanicus, not just the beginnings of the crusade and it's possible downfall, not even just his own downfall, but the preparation of the entire galaxy as a weapon to stand against the Necrons. A swirling, starry vortex filled with psychers, chaos marines, and possessed nightmares, walking a tightrope between being swallowed by the ruinous powers and standing as a bulwark against the soul destroying plans of the C'Tan.
That's the big secret that I love, and I hope to god GW likes it too because I can't think of anything more epic then that.