Athelan is a "flaw" that the elves rarely encounter in thousands of years - he was born with a golden vein that can only be found in hell. When the mother tree began to crystallize, the elders concluded that he had polluted the sacred tree and threw him from the divine realm 10,000 meters above the ground. After falling into the human kingdom, he unexpectedly discovered that the shading disease here could be cured by his "pollution". The Holy See called him the "Holy Tree Walker", the elves regarded him as a traitor, and the lord of hell offered him an olive branch. It wasn't until the world was on the verge of collapse that Aslan discovered in the core of the broken hell: the so-called gods were just fragments of the split consciousness of the first generation of elves.
The only price for saving the world is that he burns himself to fill the cracks in creation.
