At the moment, Zhang Xuan's zhenqi cultivation had already reached Great Sage 1-dan Introspective Convalescence realm consummation. He had already browsed through the books filled with the insights of the predecessors regarding their breakthroughs in the Great Sage realm from the Zhang Clan and the Luo Clan. However, the path that each cultivator had to take would eventually diverge, so naturally, the method through which each of them achieved a breakthrough was different.
He could use their insights as a reference to give him some direction, but he could not blindly copy from them.
For this reason, even though he had already browsed through many books, he was still unable to find an appropriate method for him to further advance his cultivation.
