Although Sacred Mountain possessed immense might, Nie Yun had not spent much effort refining it, nor had it been as difficult as he claimed.
At the time, his strength had merely been that of an ordinary Heavenly Dao Realm cultivator, still a long way from Nine Provinces. If it were now, he could accomplish it with a single thought. Forget half a year—it would take only a few breaths.
Every Great Emperor who could survive through multiple epochs was incomparably formidable. Even if such people could not match him, they would not be much weaker. How could they possibly fail to refine it?
"Just because you didn't have to put in much effort doesn't mean it was easy for everyone else!"
Great Emperor Shennong gave a bitter smile upon hearing this, then continued, "The civilizations and cultivation methods of the God Realm differed in every epoch. Sacred Mountain contained the wisdom and strength of countless Great Emperors across countless epochs, so it was... exceedingly chaotic! For example, in one epoch, the method for making a divine weapon acknowledge its master might be blood dripping. In the next, it might be a matching of souls; in the one after that, it might be the merging of bloodlines... Precisely because of this, Sacred Mountain was filled with the ideas of far too many Great Emperors. No one noticed at first, and by the time it was completed, it was already too late!"
"This..."
Nie Yun immediately understood.
It was like Treasure Refiners. With different techniques and methods, if they worked together to forge a single treasure, all kinds of problems would arise. How much more so when jointly forging Sacred Mountain!
The forging of Sacred Mountain had continued through who knew how many epochs, with who knew how many Great Emperors participating.