Every Daoist Lineage Venerable Master must take a Dao Heart Oath, swearing never to take a single step outside the Douluo Grotto Heaven.
This meant that despite possessing Supreme Cultivation on par with the Celestial Punishment Peak Master, Master Zhuang was completely unable to intervene in the current war between the Human-Demon Races.
Before the passage to the Upper Realm was severed, the authority to transmit the Dao Vein's scriptures and communicate with the patriarchs of the Earth Immortal Realm was held firmly in their hands.
Their knowledge of the Upper Realm's secrets and the hidden Divine Objects of the Earth Immortal Realm far surpassed that of the Virtue Vein.
