Heaven-Grade Cultivation Techniques were not actually rare, but the easiest way to obtain them was through the Heaven's Mystery Vault. Thus, Merit was indispensable to any cultivator.
The circulation routes of every cultivation technique differed. There were a total of Three Hundred Sixty Spiritual Apertures in the human body, and the possible routes could be said to shift through a thousand transformations. The quality of a cultivation technique lay in its circulation route. A good route made cultivation and battle more efficient and faster; the opposite was true for a poor one.
The connections between Spiritual Apertures could not be made at will either. Even two adjacent Spiritual Apertures might not necessarily be connected freely. A rash attempt could very likely lead to extremely dire consequences.
The various cultivation techniques currently circulating throughout the Nine Provinces had all been tested by time and generations of cultivators. Regardless of whether they were good or bad, they could at least be safely activated.
If one connected Spiritual Apertures without following a cultivation technique's circulation route, they might be fine if lucky. If unlucky, their Spiritual Power could very well run rampant and damage their Spiritual Apertures—an evil consequence no cultivator could bear.
Cultivation techniques were important, but they were not the greatest factor affecting a cultivator's strength. Even by cultivating a somewhat inferior technique, one could still display formidable strength if their own foundation was strong enough.
There were nearly a hundred Heaven-Grade Cultivation Techniques in the Heaven's Mystery Vault suitable for Lu Ye's cultivation, and their prices varied greatly.
The worst cost more than thirteen hundred Merit, while the best cost more than five thousand Merit—a difference of fourfold.
Yet the difference in cultivation efficiency between them was nowhere near fourfold; it would not even exceed forty percent. Lu Ye estimated