Xia Ji did not do anything. He was just like an ordinary baby being carried.
However, if he wanted to, he could let his original power descend into this small body at any time and transform himself in a very short period of time.
However, if you had truly lived for more than 1,500 years, wielded your saber day and night for hundreds of years, fought against countless demons and ghosts without any promise or future, wandered around the Yellow Spring with the tide of ghosts, and watched the Reincarnation Platform that spanned time and space crush countless souls, you would feel a sense of indifference when you returned to the human world.
You won't be angry because of many things, and you won't be anxious to do anything or show anything.