The current Spirit Realm contained not only heaven and earth spiritual energy, but also a considerable amount of pure yang energy and traces of primordial energy.
Needless to say, primordial energy far surpassed the immortal elemental energy of the Immortal Realm, while pure yang energy was not much inferior.
Combined with the Heavenly Immortal Laws, Divine Immortal Laws, Profound Immortal Laws, and Great Luo Golden Immortal Laws that Fang Yu had infused into it, the entire Spirit Realm's plane level had risen.
Although it still could not compare to the true Immortal Realm, true immortals had now emerged.
There was no longer any need to undergo tribulation and ascend in order to become a true immortal.
Thus, Mahayana cultivators from nearby planes flocked to the Spirit Realm, absorbing and refining pure yang energy to transform the True Essence power within their bodies.
Of course, to advance to the true immortal realm, the most important thing was still to refine a trace of primordial energy.
Yet refining primordial energy was no easy task.
It was already exceedingly difficult in one of the Three Thousand Great Worlds like the The Great Primordial World. Not to mention the mortal Spirit Realm, where physical bodies and True Essence power were entirely different.
Therefore, one first had to thoroughly transform the True Essence power within one's body by absorbing and refining pure yang energy before there was any hope of refining primordial energy.
Moreover, without assistance, the difficulty of refining primordial energy
was no easier than surviving the heavenly tribulation of ascension—perhaps even more difficult. The only difference was that one did not need to ascend to the Immortal Realm and could remain in the Spirit Realm to continue cultivating, thereby advancing further.
Compared to the vague and unknowable Immortal Realm, remaining in the Spirit