What's the point with that quite lackluster story in Endwalker?

[Rulakir]

All of these are basically standard beliefs of East Asian religion.

I have little knowledge of Asian beliefs in general. Outside of having grown up in a Christian family, I could win at Greek mythology trivia and that's about it. :P As far as the beliefs I was raised upon (which, incidentally, I no longer hold, I'm agnostic at best), souls don't work like that. The thought of an immortal soul being split apart or permanently destroyed is horrifying to me, which is possibly why I view the sundering as a far more gruesome act than perhaps someone from Asian cultures would.

[CrownySuccubus]

I have little knowledge of Asian beliefs in general. Outside of having grown up in a Christian family, I could win at Greek mythology trivia and that's about it. :P As far as the beliefs I was raised upon (which, incidentally, I no longer hold, I'm agnostic at best), souls don't work like that. The thought of an immortal soul being split apart or permanently destroyed is horrifying to me, which is possibly why I view the sundering as a far more gruesome act than perhaps someone from Asian cultures would.

Yeah, that's not how Asian beliefs view the concept of a "soul". For example, a common belief held in Chinese-influenced countries (which includes Japan) is the "family spirit". Eventually, the soul of every person that dies within a family or clan is slowly absorbed into a collective "family spirit" which watches over and protects their living relatives. Individual souls slowly lose their individuality and personal consciousness, their identities being subsumed into the family entity.

This is not considered to be a bad thing. Individuals being slowly absorbed into a greater (typically stronger or wiser) whole is a common theme in both East and Near East religions.