Indeed, all roads lead to Rome.
Both martial artists and Daoist cultivators ultimately aim for "becoming immortal."
Martial artists don't cultivate their primordial spirit but "will of martial arts," which ultimately boils down to "soul" and "spiritual power."
After becoming immortal, a person's life level undergoes a leap, and their spiritual soul power will also leap and transform into an "Immortal Infant."
As for the "Immortal Infant," Heavenly Master Xu mentioned it a few times in the [Divine Ascension Scripture], so Xu Yang had some understanding of it. What he didn't expect was that he hadn't become immortal yet, but he had already condensed the "Immortal Infant" one step ahead.
However, upon closer examination, this makes sense.