Only I can see the truth of the world

Ye Tian has traveled to a world where Taoism and Buddhism flourish.
But strangely, in his eyes, this world is full of unnamed and terrible demons.
Taoist priests with forked mouths, headless monks, and a sky full of tentacles! Is cultivation about becoming an immortal or a demon?
Is becoming an immortal truly just a beautiful lie that people tell to deceive themselves and others?