Successfully obtained the Unlimited Eternity.
Li Xiaobai's conjecture was confirmed; as long as he experienced a Heavenly Tribulation matching his cultivation level, he could obtain the Unlimited Eternity.
In this way, seeking to advance his cultivation would rely on catching Heavenly Tribulations for the remainder of his life, and he would need to find cultivators passing the Tribulation with strength similar to his own. Too strong and he wouldn't be able to withstand it; too weak, there might be no effect.
The road ahead is long and arduous. While others are desperately avoiding Heavenly Tribulation, he must actively seek it out—it's no easy life.
[Host: Li Xiaobai!]
[...]
[Defensive power: Transcendent Second Layer (Second Unlimited Epoch: incomplete) can advance!]
[...]
Advancing requires two Unlimited Epochs. By catching one more Heavenly Tribulation, he'll succeed in advancing.