The new coffin is opened in the dark, its occupant laid bare to the stale air. A skeletal hand meets another. Guided by the chattering of skulls it learns to read the plate atop its stone bed. "Naive". 

With no memories and no abilities other than its newly found locomotive skills, Naive is tasked with the same task as every newly emerged skeleton. Gather experiences. From nothing, Naive will venture out into the pitch black caverns and seek what can be found. Most often it will find death, but everytime its bones are ground to dust, burnt to ash or chewed into waste, they will reform with its consciousness in the coffin bearing its name.

Live, die, learn, try again. If the undying gullible skeleton was ever alive in the first place. 

Epitaph of Everything, a coming of sentience story.