Quote Originally Posted by Lauront View Post
Hmmmm it's very messy and they don't explain it in much detail:


So the same answer could be taken for her - my assumption being that the core for some reason was stuck on the Source, and with her being the heart, she was exempted from that treatment. You could argue that not being bound and "heartless", she was able to reform her primal body. I don't think they explained this stuff using the best explanations, but it's what we got. My guess is they didn't want to have to do any further writing regarding their presence on the Reflections.
What they said made perfect sense to me.

As the Watcher says, The Source is the lynchpin of all the other worlds. If it is destroyed by any means, the reflections die along with it. Similarly, crushing Zodiark's core in The Source destroyed every other part of him in all the other reflections. The same also likely applies to Hydaelyn.

It's probably also the case that if you completely destroy a soul on the Source, their reflections in other worlds probably go with it. For instance, destroying the WOL's soul completely would likely have also killed Ardbert, even prior to their merger. If what Y'shtola believes about the blasphemies is true, then all the people who turned on The Source probably also doomed other people. That'll be difficult to confirm on the First, since everybody's already dead on whatever their version of Islabard was, and that was the only major outbreak of blasphemies.