Demonic beasts had powerful bloodlines and long lifespans, far exceeding that of humans.
Moreover, as a demonic beast's strength increased, its lifespan would also increase greatly.
Therefore, burning a portion of their lifespan to enhance their potential and break through bottlenecks at certain times was definitely a great gain for demonic beasts.
Although the lifespan of human cultivators was not short, compared to demonic beasts, it was simply between heaven and earth.
According to Ye Xuan's current understanding, if his comprehension of the cultivation technique was only 1%, then even if he spent 10,000 years of his lifespan, he could only increase his aptitude by 1 point at most.
Now that he had fully comprehended the cultivation technique, if he consumed 10,000 years of his lifespan, he could increase his aptitude by at least 1,000 points!
This was a qualitative change, not just a quantitative change.
