For a while, I have been pondering over the thought that Lorkhan and Aka are not enemies. Lorkhan enthusiasts and Auriel enthusiasts will probably not like that, if they prefer the notion of eternal conflict between the two.
I believe, that specifically in the current Kalpa, Aka and Lorkhan may be the most cooperative.
For a long while I believed that Aka was evil. Why?
Because I looked at Alduin and Auriel and was like: How is Aka supposed to be a good guy? And *suprise*, Aka is not evil.
[You can always correct me if you want, or if you have something to add]
That is because Alduin is essentialy that early wrath of Aka that unlike everything else on Mundus, never gets devoured. He is basically the version of Aka that looked at himself and the Et'ada around him and was disgusted by it - even by himself.
So Alduin is essentialy that early frustration of Aka, incarnate. That which continued to live on for possibly NUMEROUS of Kalpas.
In a way, Alduin really hates himself the most and wants to devour himself, though he can't. Because the Dawn he can't undo.
It is indeed possible that we as The Last Dragonborn ended his misery, after he had survived for Kalpas and Kalpas on end.
That version and memory of Aka, aka Auriel, we hear about is fury and anger that is possibly worlds in the past. Though, he eventually gives up his powers for stability's sake.
Alduin is really that one wound within the kalpic cycle that was now left to be healed. He was that memory of a failed past that always slipped through. I think that makes the feat of the "Dovahkiin Ysmir Stormcrown" much much more meaningful.
The other wound was Lorkhan's heart lying beneath the Red Mountain. Praise Nerevarine for that!
In any case, when i read through the Song Of Pelinal it seems to me as if Alessia represented Aka and Pelinal represented Lorkhan, and yet also the other way around. Alessia/Aka the empress/king who sits the throne, governs, rules and then there is Pelinal, another Mask of the astrayed Sithis, being the shadow of Aka. Only that this shadow moves by itself.
Than the obvious synthesis between Aka and Lkhan, manifested as the many later Dovahkiin suggests that Aka and Lkhan drive each other.
Then Akatosh who is basically a dragon, powered by a human heart and later Talos who is powered by Aka's soul. The Nords who were once Dragons and the Dragons that were once Nords.
So... Aka and Lorkhan are not enemies and not rivals. It is merely the fragments and memories of forgotten worlds and an unchangeable past that slip through and blight our vision.
I have so many more points, but I fear that I will lose the plot, as I am writing this as a freestyle.
