Because...
After crossing the Endless Sea of Suffering.
That mysterious old monster had shamelessly revealed its scheme.
The Eighteen Netherworlds.
During the countless "death" punishments.
If Wu Dao had shown even a shred of fear of death or the thought of giving up on life, he would have truly died in the Mud Prison.
The old monster would have usurped his body.
And taken everything he had.
It would have lived on in his stead.
The same went for the Endless Sea of Suffering that followed.
Amidst countless desperate lives, where things only went from bad to worse.
If any of Wu Dao's "reincarnated" selves...
...had even the slightest thought of giving up the fight against a fate of ordinary suffering and actively chose to end their life.
He would have lost all the same.
One could only imagine...
...in this game of life and death that was unfair from the very start, just how perilous the situation had been for Wu Dao, who didn't even know the rules.
