Slaying life and seizing spirit—the Great Perfection of the Spirit Slaughter Technique not only raised its killing power by another degree, but also brought an obvious change: the impurities attached to the seized spiritual essence had lessened somewhat.
The reason was that the Spirit Slaughter Technique had become more refined and subtle in its execution, allowing it to strip away some impurities within the spiritual essence beforehand, such as fragments of Spiritual Power.
However, for Chen Fei to directly absorb this spiritual essence was still somewhat not worth the loss. Continuing to feed it to the Qian Yuan Sword remained a good choice.
He estimated that once the Spirit Slaughter Technique broke through to the Great Perfection Realm and the impurities were further reduced, he might then barely be able to absorb it. If he wanted to draw it in without any concerns, he would still need to find a cultivation method that matched the Spirit Slaughter Technique.
Or Chen Fei could seek out other cultivation methods himself and fuse them with the Spirit Slaughter Technique, just as he had with the Shadow Reflection God Slaying Sword, removing some of the flaws within the move.
Yet cultivation methods that purified spiritual essence—especially those that removed Spiritual Power impurities from it—were few and far between. Most of them involved Spiritual Power cultivation methods.
As for the Spiritual Power cultivation methods Chen Fei could find on the market, there were only a handful, and Chen Fei had already learned most of them.
If he truly wanted to absorb the spiritual essence gained through the Spirit Slaughter Technique without concern in the future, raising the Thousand Silk Art should have some effect. There was also the prospect of improving the Spirit Suppression portion of Dragon Subduing Elephant Spirit Suppression.
It was simply that