The answer is found in one's self!
Fang Yuan’s first strength path phantom looks like a youthful version of himself. It alone briefly blocks the charging Gu Masters before three blows tear it apart. Mo Yao’s will recognizes the move as Hei Lou Lan’s and asks how he reproduced it after seizing the vital Gu. The Gu Masters call it a weak imitation and press forward faster. Only Hei Lou Lan slows, bewildered that a phantom built from his own vital Gu wears Fang Yuan’s features rather than his. His injuries have already largely healed: Great Strength True Martial Physique sits at the top of the ten extreme physiques for recovery, tens of times stronger than six arm heavenly zombie king. Fang Yuan’s status as a Gu Immortal, aided by immortal essence, gives him an enormous advantage refining the seized mortal Gu. ch. 647
Fang Yuan punches again and again, and each strike now conjures another strength path phantom, some with two arms, others with four or six and greater strength. Within moments there are already a thousand of them, a number that greatly surpasses Hei Lou Lan’s own limit and keeps climbing. The phantoms can speak and show extraordinary intelligence, coordinating as one force and fighting without any concern for their own destruction. Their pressure on the Gu Masters grows extremely large, and the formation the Gu Masters had trusted soon starts to break. Hei Lou Lan is shaken. He cannot understand how a killer move built from one seized vital Gu could coordinate this way, and calls it a relentless army fighting to the death. ch. 647
Mo Yao’s will declares that no mortal Gu could produce such power. She accuses him of secretly holding Immortal Gu. Fang Yuan admits it: he used wisdom Gu’s rank nine aura as if it were his own to refine Immortal Gu, since a newborn wild will can hardly tell whose aura it is. Another owner’s Immortal Gu is not so easily deceived, and he says Man as Before and Landscape as Before stayed beyond his refining. Mo Yao’s will then realizes he had planned all along to transform completely into six arm heavenly zombie king, since a zombie’s death already spent no lifespan and could endure far longer under the light of wisdom while he refined. He had also needed the Gu worms that form six arm heavenly zombie king for the killer move itself. ch. 647
Mo Yao’s will grasps what she is seeing. An old, unsolved question, the fusing of enslavement path and strength path into one killer move, has been resolved in his hands. Enslavement path crushes with numbers and strength path strengthens one body alone, and his killer move harmonizes the two opposites. The breakthrough had come during his Gu Immortal ascension, and Mo Yao’s will predicts this new path will one day carry unprecedented strength. ch. 647
Giant Sun’s will, waiting on the outer edge, seizes a moment created by Mo Yao’s will’s meddling and lands a sneak attack that sends Fang Yuan rolling across the ground. Fang Yuan realizes Mo Yao’s will has been steering his thoughts again. Mo Yao’s will screams that he would not give in and activate Spring Autumn Cicada, and that destiny has handed her a chance at rebirth she means to seize. Fang Yuan retorts that most of her will and Gu worms are locked inside his immortal aperture, that he controls her immortal essence, and that this fragment hiding in his mind cannot win a contest of thought for long. Fang Yuan strikes back at Mo Yao’s will while keeping his gaze on Giant Sun’s will, and strength path phantoms close ranks around him again. ch. 647
Giant Sun’s will, fast and skilled at transformation but wary of spending its remaining thought, cannot find any gap in the phantoms’ massed defense. It reasons that Fang Yuan must have prepared this fusion before now, and that his Gu Immortal ascension likely brought him guidance from heaven and earth. Running low on thought, it takes one last chance, rushing forward as a golden rainbow to strike at Fang Yuan directly. Fang Yuan had deliberately left this gap open. Giant Sun’s will coils around two of the three phantoms waiting there but slams into the third and shatters it. Fully prepared, Fang Yuan follows with a full-strength punch, and Giant Sun’s will is caught unprepared and shattered. ch. 647