Every world had a place where energy gathered to support the world as a whole.
This world was suppressed by the nine prefectures' cauldrons.
The world's origin was the source of life energy that the nine prefectures' cauldron provided to all the living creatures in this world.
The world's origin could grow on its own and would not be destroyed, but it could be exhausted.
Once half of the world's origin was consumed, it would cause the vitality of the entire world's living beings to weaken.
This was also the reason why the heavenly Dao had decided on the lightning punishment and caused the disaster. It was to maintain the balance of the world's origin and to prevent the production of excessive living beings from consuming the world's origin.