How are respawning NPCs explained through lore?

[Bittersauce]

Open question, I'm genuinely curious if it was ever explained how NPCs keep respawning in the EQ lore.

Does a benevolent god resurrect them every 30 minutes?

Spontaneous regeneration, where if there's even 1 cell left the NPC can regrow on a timer?

Is it a long family line, with one of the sons taking over the father's guard post on a timer?

Am I just knocking them out humanely, and little gremlins move them to a recovery chamber before they pop back out ready to rumble?