Void Refining, Dao Integration, Tribulation Crossing, and the rest were the final three realms of the mortal world.
Although a Void Refining cultivator was naturally inferior to a Dao Integration cultivator or a Tribulation Crossing cultivator, they still possessed some ability for self-preservation.
Advanced cultivators deduced Heavenly Mystery Change, often borrowing the laws of the Heavenly Dao to glimpse the traces left behind by all living beings, deducing the unknown from the known and seeing through some of the mysteries of heaven and earth, as well as the movements of all living things.
However, there were still some blind spots.
Those were the Grotto-Heavens opened by cultivators. Grotto-Heavens existed independently outside the Purple Mansion World, with only a weak causal connection to the Heavenly Dao. If one hid within the Cave Dwelling, even a Tribulation Crossing cultivator might not be able to deduce their location. At a critical moment, it could be used to preserve the Lineage of a family or sect.
Throughout the vast river of history, how many great sects and how many great families had been born?
No power could guarantee that it would flourish forever.
Nor could it guarantee that it would never encounter a powerful enemy.
Even if a family or sect outside suffered annihilation, as long as its Grotto-Heaven remained, it could conceal itself from the Heavenly Dao, avoiding the pursuit of powerful enemies.
"Master, I see!"
Long Xuan nodded and said, "This is just the right time to consolidate my foundations!"
After giving a few more instructions, Lu Xuanji rose and left.
Returning to the outside world, he went back to the Lu Clan.
Lu Xuanji's divine sense stirred as he saw through the endless void. The void was utterly empty. That terrifying aura had vanished, seemingly never to appear again.
Yet