Peter Brown, while devouring the evil spirit, used his own Cultivation Technique to gain insight, which he considered as his own invention. Of course, if not for his Vertical Eye, which allowed him to see changes in the core region of the evil spirit, he wouldn't have discovered some special aspects.
As this method of understanding through the Cultivation Technique continued, Peter Brown's technique did not dissipate into the surroundings; instead, it was entirely merged with the evil spirit, forming a new type of Cultivation Technique that entered the Dan Sea.
After these new contents entered into the Dan Sea, Peter further discovered the situation. Indeed, his understanding of a certain type of Cultivation Technique was strengthening.
Initially, Peter only took out Sword Techniques to gain insight. Later, he found that apart from Sword Techniques, anything could be comprehended in the same way.
