As his cultivation rose, and after coming into contact with the inheritances of great powers such as the Nascent Soul sect White Shadow Sect and the Spirit Transformation Ghost Sect Ghost Immortal Sect, he had learned quite a few secrets of the Cultivation World.
He also knew of several methods capable of transforming mortal roots into spirit roots.
Such methods had been devised by those Tong Tian powerhouses to make up for deficiencies in their own foundations and charge toward higher realms.
After all, most Tong Tian powerhouses did not possess Five Spirit Root aptitude.
Yet whether it was the Golden Core that had to be condensed to break through to the Golden Core realm, or the Nascent Soul required to enter the Nascent Soul realm, the Five Elements Golden Core and Five Elements Nascent Soul possessed the strongest aptitudes and brought the greatest improvements.
It was merely that methods for supplementing spirit roots were of an extremely high grade, at the very least Nascent Soul-level treasures, and exceptionally precious.
The Ghost Immortal Sect, a Spirit Transformation Ghost Sect, did possess a method capable of supplementing one's foundation. Moreover, it was a superior divine ability called the Ghost Root Heaven Mending Technique.
However, this method could only supplement the ghost roots of ghost cultivators.
The foundations of ghost cultivators differed from those of cultivators. After all, ghost cultivators no longer even had physical bodies and could not truly be considered part of the human race.
The foundation of ghost cultivators was called a ghost root, such as ghost fire spirit roots, ghost wood spirit roots, and so on.
This system was entirely different from the system of ordinary cultivators.
As a result, ordinary cultivators simply could not use the Ghost Root Heaven Mending Technique to cleanse mortal roots and transform