During his odd decades in this world, Pei Xuanjing, who although initially explored a multitude of techniques, truly based his cultivation and amalgamated everything into his own Golden Core Dao.
As for the enhancement of strength, it was quite effortless for Pei Xuanjing, as his cultivation realm was still there. If he was willing, he could regather his strength anytime and reach the pinnacle level of this world.
Yet, such methods held no meaning for Pei Xuanjing. Thus, he wasn't eager to enhance his power. He chose instead to learn the cultivation methods of this world, to nourish hundreds of canons, enhance his Nine Revolutions Divine Sky Skill, and provide extra nourishment for his Golden Core Dao.
At 31: During the three years after Pei Xuanjing's promotion to true disciple status, he went through all the techniques in the Retreat of the Immortal Sect that were within his permissions and found the ancient scripture "The Art of War."
