Chen Fei reentered the mountain within the spirit treasure and discovered that the simply stored vital energy did not contain that same profound, mysterious insight as before, nor could it be absorbed by the Dragon Elephant Nexus.
Clearly, only the power refined by the Broken Ruler provided substantive help to Chen Fei's cultivation.
The current Broken Ruler was like a small wooden bucket that could hold only so much water. Only the water inside the bucket had a special effect on Chen Fei.
As for the water that spilled outside the bucket, the Broken Ruler could do nothing about it.
Of course, this simply stored vital energy would gradually develop some spiritual inspiration over time and would still aid cultivation, much like the Spirit Tide from back then.
But that required time. Compared with the vital energy directly refined by the Broken Ruler now, its efficiency was far too poor. Moreover, such mere spiritual inspiration was far too limited in its help to Chen Fei.
"This kind of cultivation is a little too expensive!"
Chen Fei rubbed his chin. One recovery required seventy-three Mid-grade Spirit Stones, after which he could cultivate for one hour.
Nearly a hundred Mid-grade Spirit Stones for one hour of cultivation—what an astronomical price.
The five hundred Mid-grade Spirit Stones gained from a bloody battle were only enough for roughly seven hours of cultivation, barely half a day.
Of course, Chen Fei could actually let the Broken Ruler recover on its own. Even without absorbing World Vital Energy on a grand scale, a small range of World Vital Energy should be enough to restore it.
But the time required for that would be rather lengthy.
Just thinking about it, to gather the amount of vital energy contained in seventy-three Mid-grade Spirit Stones without absorbing it on