This world is called the "Jiuhuan Realm of Cultivation". "The spiritual energy is poisonous and the way of heaven is defective."
Poison of spiritual energy: Mixed with the spiritual energy of heaven and earth is an inert energy called "eclipse". When a monk exhales spiritual energy, the "eclipse" will be deposited in the Taoist base and longevity, causing inner demons to appear. The deeper the cultivation level, the easier it is to fall into madness and distortion. This is the ultimate curse that all high-level monks must face.
The way of heaven is lacking: After the ancient "Jedi Tiantong" incident, the road to ascension has been cut off. The so-called "ascension" in later generations is just a lie to enter a more cruel "upper battlefield". The entire civilization of cultivation is actually involution and consumption in a closed cage.