I can't find it now (though I haven't looked too much into it) but I think I remember a question about how teleportation actually works. I'll also have to go back and rewatch some of the Titan cutscenes where Y'shtola explains it.
Basically what someone suggested was that when it happens our bodies are transformed into the raw aether and rejoin the Lifestream (as you mentioned). But how do we know where to go? Our souls then guide the part of the Lifestream that's still us to the desired aetherite and then we reform.
So perhaps the souls aren't necessarily a part of the "aether cycle" but instead some sort of separate entity? Not sure on this one, because I haven't gotten the vibe that souls are aether-based. That could just be that I'm not far enough in the storyline, though.
Basically what someone suggested was that when it happens our bodies are transformed into the raw aether and rejoin the Lifestream (as you mentioned). But how do we know where to go? Our souls then guide the part of the Lifestream that's still us to the desired aetherite and then we reform.
So perhaps the souls aren't necessarily a part of the "aether cycle" but instead some sort of separate entity? Not sure on this one, because I haven't gotten the vibe that souls are aether-based. That could just be that I'm not far enough in the storyline, though.