For ordinary immortals, compressing all their Immortal Essence to this degree would most likely have been their limit.
But Xu Changxing's Immortal Essence was so exceptionally pure that he had yet to feel a bottleneck.
When he compressed his Immortal Essence to seventy-five percent, the difficulty of cultivating the Great Wilderness Essence Suppression Art doubled again, but he still had strength to spare.
By ninety percent, the difficulty was already ten times what it had been at the start.
Only then did he encounter his first bottleneck.
As he continued compressing it, the Immortal Essence within him rebounded violently almost every moment. The slightest lapse in attention would undo all his efforts.
While cultivating in the simulation, he had failed to get the rhythm right several times, nearly causing accidents.
But each time he had encountered a problem before, he had relied on his formidable immortal sense to resolve the crisis.
It was only on the final attempt, when several disturbances arose simultaneously within him as he compressed his Immortal Essence, that he unexpectedly perished.
After watching this simulation, Xu Changxing sat down cross-legged on the spot and went over every detail of the simulated scenes.
Only several days later did he open his eyes again.
"So this is where the true difficulty of the Great Wilderness Essence Suppression Art lies."
Previously, Xu Changxing had always felt that this cultivation technique did not seem all that difficult.
Only after watching this simulation did he realize that he had thought too simply of it.
Cultivating this technique was just like using Pinduoduo in his previous life: there was almost no difficulty at the beginning.
Only after ninety percent did the difficulty truly emerge.
Compressing all his True Essence to ninety percent was nearly ten times as difficult as what had come