Transforming the vitality of the Great Dao into a Zenith Heaven Dao Fruit was only an idea, but Jiang Changsheng had not done it. After all, he was only a Zenith Heaven cultivator. However, the vitality of the Great Dao contained the power of 3000 Great Daos, so it might be impossible.
Jiang Changsheng's goal was to create a Zenith Heaven Dao Fruit. At his level, he no longer needed to absorb Qi to cultivate. Cultivation was more about thinking and comprehending the Dao. Creating a Zenith Heaven Dao Fruit was a process of comprehending the Dao, allowing him to have a deeper understanding of it.
The third sub-realm of the Zenith Heaven Realm was still waiting for him to create.
He was prepared to create the third sub-realm as the highest sub-realm of the Zenith Heaven Realm. If there were too many sub-realms, it would cause the difference between each sub-realm to be insufficient. He did not wish for this to happen.