No one lives forever, sooner or later everyone must pass on and there is no preventing that. Should one suffer fatal wounds, unless they receive immediate care they will die. This is a world without raise dead.
Death is not necessarily the end though, the world has a memory of all those who dwell on it. Some particularly strong individuals may even leave a semblance of themselves after their passing. These ghosts are exceedingly rare and fade rapidly.
There is no concept of “undead” in Hikryela. When something dies nothing short of weird science can even create a semblance of a zombie. (With the proper gears you could make a puppet of sorts, but then you would just be making a construct out of a body.) That being said, there are stories of creatures similar to Vampires, but they very much are alive, they just have additional powers.