After completing his Spirit Opening, when his True Spirit Circle had turned pure white, Xu Yi had known he'd cultivated a fourth-tier soul sense.
But he had no idea what a fourth-tier soul sense meant. Nearly everything he knew about divine sense came from Elder Qin's book, Introduction to Divine Sense.
That book covered the essentials of condensing divine sense and its significance, but never mentioned what the various ranks of divine sense meant.
Elder Qin, however, had known all along that Xu Yi possessed a Spirit Opening Pill. The divine sense he condensed was bound to be extraordinary.
That was precisely why Elder Qin had given those instructions, indirectly encouraging Xu Yi to fight Elder Xia.
Even Elder Qin himself could never have imagined that Xu Yi would condense a fourth-tier soul sense, far beyond anyone's expectations.
In Elder Qin's understanding, with the aid of a Spirit Opening Pill, condensing a second-tier soul sense was normal. A third-tier soul sense marked exceptional talent.
But he could never have guessed that Xu Yi's talent in his True Soul was even more extraordinary. Xu Yi's True Soul was already exceptionally powerful, and the process of fusing it with divine sense had taken an unusually long time. With the help of the Spirit Opening Pill, he had achieved a fourth-tier divine sense in one stroke.
In a battle of divine sense, aside from techniques, the purity and depth of one's divine sense carried the decisive weight.
At this moment, Elder Xia's Flash Spirit Wave couldn't break through Xu Yi's wall of thought because of its astonishing purity. Of course, the fact that it couldn't break through now didn't mean it never would.
In terms of depth, Elder Xia's divine sense had already reached True Spirit Circle Great Perfection, far surpassing Xu Yi's.