It was similar to how the Heavenly Dao laws were strengthened.
However, the Heavenly Dao laws were more direct. No living beings could be stronger than the Heavenly Dao laws. Any living being under the Heavenly Dao laws, no matter how they cultivated, would never be able to escape the control of the Heavenly Dao laws.
The nine zones' Great Dao was not so overbearing. After all, it was born from chaos and not created by a person.
However, the Great Dao calamity would cause the Great Dao to collapse and reform to reestablish balance in the nine zones.
Chu Xuan thought of many things at this moment.
Daoist Flying Cloud said that they were rejected by the Great Dao and could not enter the nine zones, so they lived in the Ancient Chaos World.
Unfortunately, this did not exempt them from the Great Dao calamity, as their Dao paths were all rooted in the nine zones' Great Dao.