Naturally, the practical value of this Gu recipe was extremely low.
Many of the Gu materials listed in the recipe had already gone extinct and no longer existed in the world.
If Fang Yuan wanted to refine this mortal Gu, he could only revise the Gu recipe.
Naturally, he would not do such useless work. With this intelligence, he already had a deep understanding of this mortal Gu.
Next, Fang Yuan perused those mortal inheritances of formation path.
This filled in some of the gaps in his formation path foundation.
Although he had never specifically and proactively studied formation path, his five hundred years of experience in his previous life had, more or less, allowed him to encounter some formation path content through indirect means or fortuitous coincidences.
Thus, the extent of this enrichment was not great, only very limited.
But this time, he gained a targeted understanding of the trial within the dream realm.
The formation path intelligence he had gathered had also been purposeful. From certain pieces of intelligence, he learned that during the Near-Ancient Era, there had been a popular school of thought in formation path.
This school of thought was abbreviated as Earth Water Wind Fire. It held that these four elements could make Gu formations quite stable, and that the most basic Gu formations they formed possessed the greatest inclusiveness.
Of course, this school of thought had only been popular for a time. Several decades later, it was discarded by the world. Compared to the entire history of formation path's development, several decades was far too short. This school of thought was like a tiny wave, extinguished in the surging river of history.
"Just like the origins of humanity. Earth once believed that humans had been created by gods, whether it was Huaxia's Nüwa creating