This place was extremely safe. After all, it had originally been prepared by the Heavenly Soul Ancestor for cultivation. Huo Hai simply did not bother changing locations. He sat down where he was and placed the crystal before him.
The secret art for absorbing the Soul-Gathering Crystal had originally been carved into the reliefs around the hall. Huo Hai silently circulated his spiritual power and began guiding the power within bit by bit. Before long, streams of mysterious power carrying the will of heaven and earth entered his body. Under Huo Hai's control, they swiftly spread and seeped into his spiritual power.
What a powerful will, what incredibly pure power. Huo Hai sighed inwardly. Though it was called will, how could heaven and earth truly possess any will? This special form of spiritual power merely resembled Mental Power containing human will.
It was like Huo Hai's own spiritual power now, which was gradually being permeated by his Mental Power. The purest Mental Power that seeped into it manifested as willpower. Huo Hai somewhat suspected that the Fallen Soul Crystal might be formed in a manner similar to the Soul-Gathering Crystal before him. After all, the power gathered by a Soul-Gathering Crystal came from heaven and earth's spiritual energy.
The Fallen Soul Crystal, meanwhile, relied on the souls of living creatures to condense heaven and earth's spiritual energy. Although the willpower contained in the resulting crystal was vastly inferior to that within this Soul-Gathering Crystal, their forms of composition were very similar.
But Huo Hai had no need to think about that now. With the better Soul-Gathering Crystal, any Fallen Soul Crystals collected here in the future could be left for the Lineage to use. Once this place was properly tidied up, it might have other uses as well.
As for