Chapter 415
Azure World.
Deep within the Martial Hall.
Lin Yuan sat cross-legged, with the surrounding space faintly distorted.
His vast mental willpower permeated through the layers of space.
Mental willpower was a very unique form of power, transcending the body and soul—it was the most core essence of life itself.
In the main universe, human civilization had already achieved a certain standard of "quantification" for mental willpower. For a seventh-rank being to break through to the eighth rank, their mental willpower had to reach at least 10,000 points.
Of course, this wasn't an absolute rule.
Having more than 10,000 points didn't guarantee a successful breakthrough to the eighth rank.
Likewise, not reaching 10,000 points didn't mean failure—there was still a faint chance of success.