The Eternal Divine Medicine really was formidable.
Both its eternal qualities and its Primordial Substance were remarkably concentrated.
Compared with Immortal Divine Medicine, it was different in its very essence.
The fifty Eternal Divine Medicines he had extorted from the Nine Sages of the Sky Desert Divine Hall were only Ordinary Tier, but with Li Yun having just entered Origin Constant, each one could still benefit him greatly.
They could help solidify his foundations as he ascended toward Heavenly Constant.
Of course, he was already at Origin Constant. Expecting fifty Ordinary Tier Eternal Divine Medicines to propel him through another leap in strength was a fool's dream.
During the forty-odd years Li Yun spent lying low in this desolate mountain, he had completely absorbed and refined all fifty Ordinary Tier Eternal Divine Medicines in just twenty years.
After that, his cultivation relied mainly on the peak Heavenly Constant Eternal Divine Medicine he had long since taken into his body.
That Eternal Divine Medicine had grown over countless years by condensing Primordial Substance around the Eternal Scripture. The Sage Constant True Spirit of the Eternal Divine Dynasty's ruler had even considered it one of his means of rapidly regaining his cultivation after possessing a new body.
In essence, it stood far above Li Yun.
Even though Li Yun had comprehended the profound Eternal Perfection Mystery and his Eternal Illumination of the Past Scripture was growing ever more complete, he had no hope of devouring and refining it quickly.
He still needed to spend a long time slowly grinding away at it.
And slow it certainly was.
More than forty years passed.
Despite cultivating without distraction, Li Yun had only taken one small step beyond early Origin Constant. He was still a considerable distance from its middle stage.
Li Yun could only