Only after Tang Changsheng drew down the Primordial Taiyi Qi and attained a Yang Spirit could that qi run through his entire Daoist Grounds, merging them with his Dharma Realm into a single whole.
Only then would he have a true Earth Immortal foundation!
Those who could not reach that step could, at most, become Dependent Immortals under an Earth Immortal.
Or they could simply become Heavenly Immortals, accept Talismans from the Heavenly Court, take up divine offices there, and wield authority over a domain.
That was what True Lord Wu meant when he said each path had its advantages and drawbacks.
Those who took the Earth Immortal path were, as the saying went, free and unfettered.
Those who took the path of a divine immortal, however, would fall under the Heavenly Court's rule. In return, they would wield considerable authority...
It all depended on the choice one made!
Whatever the choice, once an Earth Immortal foundation was established, leaving one's Cave Abode would no longer be easy. Unless, of course, one mastered the External Incarnation Technique and sent out an incarnation...
For instance, neither Sect Leader Chen nor True Lord Wu, whom Tang Changsheng had met, had appeared in person. Both had sent incarnations. Their true bodies were likely cultivating within their own Cave Abodes and Daoist Grounds...
But at that moment, Tang Changsheng smiled. "I'm not like them, am I? My foundation isn't bound by that restriction!"
With a laugh, he took out a mirror: the newest Three Realms Mirror, which he had found in the so-called Sea God Palace of the Otherworld.
Tang Changsheng did not know exactly what this Three Realms Mirror had originally done. But after it fused with the other Three Realms Mirror Fragments, and especially with the Myriad Forms Mirror, it underwent a