Actually I don't believe that Hjalti the Dragonborn was a Shezzarine. I have seen what Kirkbride wrote, but I fail to see any logic in this, for a number of reasons:

1. I believe that there can be only one Shezzarine at a time (I hesitate to say the same about a Dragonborn, since their nature is different - a Shezzarine is an incarnation of Lorkhan while a Dragonborn is a person granted with certain features by Akatosh, not an incarnation). Thus it was Wulfhart the Shezzarine, not Hjalti.

2. Since a Dragonborn is basically made by Akatosh - why would Akatosh make an incarnation of Lorkhan into a Dragonborn?  That makes no sence to me, thus I believe that a Dragonborn, whether it's Hjalti, the PC or any other, is not a Shezzarine.

3. Why Zurin Arctus would be a Shezzarine is totally beyond me - is there any reason to consider him as such, besides Kirkbride's writing and the fact that he is a part of Talos oversoul?

So, I think that the ghost confuses the LDB for Hjalti only because he is a Dragonborn. I also don't believe that the LDB is an incarnation of Talos, because Talos is already a god.

All that, though, raises another question: does a Dragonborn kind of have two souls, a mortal one and a dragon one? Or only a dragon soul?

Hmm, where would you place the dragons then?

I'm a little confused with the Aedra and the Elhnofey though, as I was under the impression that the Aedra were earlier and the Ehlnofey (at least some of them) were their descendants. Am I completely wrong?

You're going to be seeing Enantiomorphs everywhere now Lis!  Serana, Hakon and TLD? Enantiomorph. Miraak, Hermaeus and TLD? Enantiomorph. Ulfric, Tulius and TLD? Enantiomorph.TLD, Vyrthur and Gelebor? Enantiomorph.  You've got the gist of it and I like all those ideas.

The keys to the enantiomorph, I think, is that one must be the witness and be maimed in some way when there is an action. Also, the roles of Rebel and King can be undefined until that action. It really does stray into quantum theory - you can't know both the speed and exact location of a particle at the same time until you look at it and so Schrodinger's Cat can be both alive and dead at the same time.

If it helps, think about the celestial enantiomorph - the Mage, The Warrior and the Thief. The Thief takes the Tower from the Warrior and becomes king while the Mage watches. This is the concept distilled right down and affirms the reality of TES universe. The enantiomorph is about possibility, change and potential.  The Aurbis is surrounded by Anuiel stasis and Sithis change and when the two meet the Grey Maybe can be seen. The enantiomorph is a something repeated up through the gradients and each time it affirms reality like a story reasserting itself.

Not that it would have the same outcome, cause Talos is already ascended, right? Right? Except we have that darn pesky ghost calling you Hjalti again and Shor ain't at Sovngarde. Uh oh... Though Talos was recently brought down by the terms of the White-Gold Concordat, so technically his worship is illegal and he is technically no longer considered a divine, so missing again in miniature, perhaps? Wandering amidst conflict, only visible to pesky ghosts and unable to partake of the pleasures of wherever it is that he/she/it roams in Aetherius. See, I acknowledge the sex-changing Gods.

I like that interpretation but I tend to think it will take a lot more than outlawing his worship to bring Talos down. I do like the idea that Shor's throne is empty because right then he was looking at his empty throne from your Old Mer's eyes

Do you think subconsciously Ulfric could have these aspirations? Especially if we believe the events of the Heresy, that it was a Breton who achieved this CHIM and not a Nord.  Would that irk Ulfric to no end?  Would he be aware of the Arcturian Heresy? Could he have it in him to try to do this?  What would be interesting is turning these little parallels on their head if the Last Dragonborn sides with the Imperials in the conflict and they then defeat the Rebel, killing him. This miniature reenactment then cannot happen and Talos is then truly dead, at least figuratively. I find this fascinating.

Hard to say how much Ulfric knows. The theme of the story probably means more to him than the details and I doubt anyone would be able to engineer events to make something like this happen for apotheosis. See, I don't think any of these enantiomorphs are actually done on purpose, at least not consciously. That's why Lorkhan needed three Shezarrines at the same time. Each had their own personality and we can only really assume that out of all of them only Wulfharth knew what he truly was. So ascending to godhood via this method is not a likely outcome and has only ever been done once - by Talos. If Ulfric did have these aspirations subconsciously then that might imply he is Shezarrine and I have difficulty accepting that. Yet as a sithian instrument of change it would make sense, sure.

The Snow Throat's Stone is thought to be a cave. Trying to think of significant caves in the game, but the two that really jump at me are... The cave leading into the Forgotten Vale where you find the weapon that shot Lorkhan's heart and Blackreach, where you find an Elderscroll, though it's Septimus' outpost, a sort of frozen cave, where you get the information to find the scroll (Oh Lissette, you just had to slap Hermeus mora into this mess too, didn't you?).

That damn cave. I wish MK had kept his mouth shut on that because while it might have been the original plan or part of the design documents way back when it ain't there now. I've been trying to think of the cave metaphorically, what it represents and what it might mean but I am stumped.

I love how you have put old Mora in there, that dude could well be behind everything!

With Tullius and Ulfric we can see the roles of rebel and king in a state of flux. We won't know which is which until there is an event which stabilises and solidifies it. The only problem with the Civil War is that identifying the witness is hard.

Let's say Tullius wins the war. The act of killing Ulfric is the event which marks Tullius as the rebel taking the tower from the king. Yet who is the witness? There has to be an injury or maiming of some kind because that echoes the story all the way to the top of the gradient tree:

Nir became pregnant, but before she gave birth, Padomay returned, professing his love for Nir. She told him that she loved only Anu, and Padomay beat her in rage. Anu returned, fought Padomay, and cast him outside Time. Nir gave birth to Creation, but died from her injuries soon after. Anu, grieving, hid himself in the sun and slept.

The Last Dragonborn was not injured or maimed and therefore cannot be the observer. Yet if another being acts as the observer then it cannot work because now there are four actors in the drama.

I cannot deny the mythical analogy the civil war has but as of yet I'm not sold entirely on it being an enantiomorph. It could be a failed one though. But no, as far as lore friendly goes on this deep of a level, siding with Ulfric or Tullius is entirely equal.

A dragonborn is a mortal with the soul, or euphemistically the blood, of a dragon. A dragon is just a shard of Akatosh, Dragon God of Time.

Akatosh, as time, is just one half of a whole. Time and space are linked in our Einsteinian universe and in TES this relationship is just couched in metaphor. Space is Lorkhan, Time is Akatosh and together they are spacetime.

Though, it would also make one wonder, if the DB was a non-Human. Would Shor be willing to incarnate into a Mer? Considering he and Tsun were slain by Merish gods? In fact, where IS Shor, since Tsun still stands guard? Where are Stuhn and Kyne? 

The thing I always bear I mind when I sense a conflict of interest is that these gods are one and the same. I mean, Shor, Shezarr, Lorkhan... they are just cultural reflections of that deity's core. Shor doesn't like elves. Why? Because he's a Nord. Shezarr doesn't hate elves and is happy to share his pantheon with them. Why? Because he's Imperial. Etc, etc... you get my point.

So when you strip it all back and wonder about Lorkhan's plan for Mundus, was he thinking about just men? That can't be because the plan involved so much more diversity than that.

Edit: Shor might be dead but in the myths he has been shouted back into the world a few times. The Nords aren't afraid of letting their beliefs get in the way of a good tale.

That means that a Dragonborn is basically a dragon in all but body. Thus, not a Shezzarine. Dragons can't be Shezzarines, can they? 

Just like you said to Lissette, the ban of Talos worship is not enough to take him down (all the more so as there are people worshipping him despite the ban), so he must be somethere there in Aeterius, not incarnated on Nirn as the LDB.

Also, with the whole oversoul thing, an incarnation of Talos, had it even be, wouldn't be the same soul as Hjalti.

The idea of Lorkhan incarnating into a mer... whoa, what perspectives it has... It would be quite a frightening story, whatever side you'd look at it from...

I think the seemingly unlikeliness of it stems from the fact that a Shezzarine is said to be a hero of men, and if he is a mer, does that mean that he would betray his people or that he will become a hero of elves instead? Kinda Pelinal Whitestrake Thalmor edition, huh? Do you think it's possible?

You can't complete any of these major questlines, Mainquest, Dragonborn, or Dawnguard without talking to Old Mora. 

Meh, you can still do enough with the Tower stuff to have some fun. 

This conversation has only solidified my ideas. Thank you. 

Uh, well, yes, they can. Wulfharth was both Dragonborn and Shezzarine, unless I'm wrong. I personally think that the LDB is indeed both as well.