The Ruyi Jingu Bang had already transformed into an Innate Virtuous Treasure, with the virtues of the Great Path as its main component.
After the Divine Weapon transformed into a Divine Arrow and shattered the body of Buddha Wutian, Luo Hou did reassemble Wutian's body, but Sun Wukong intentionally left some of the virtues of the Great Path on the arrow.
The Buddha Sect preaches cause and effect, and the practice of cultivating virtue, especially the virtues of the Great Path.
The Buddha's relics swallowed by Luo Hou, as well as Buddha Wutian's benevolent thoughts, Kinnaris, were all influenced and blessed by the pull of the virtues of the Great Path.
Luo Hou's features twisted and changed, and although he had the World-Ending Black Lotus above his head, he could no longer suppress the changes in Wutian's body as numerous golden Buddhist lights emerged.
"Amitabha, well-said, well-said."
