He breathes like a fetus in amniotic fluid.
Fetal Breathing!
This is a signature ability of a Great Grandmaster. With such power, even in outer space, a Great Grandmaster can roam freely without the risk of suffocation in the short term.
Because the body of a Great Grandmaster can store a vast amount of oxygen and other gases, enabling them to form a breathing cycle within their body through their Dan Tian Qi Sea, without needing pores or nostrils.
In ancient times, Grandmasters were called "Land Immortals."
And a Great Grandmaster had another widely-known title: "Heavenly Immortal." This was because a Great Grandmaster, who mastered the art of flight, had once broken through the planet's atmosphere to roam the outer space, like a satellite.
To ancient people who didn't understand science,
a Great Grandmaster was a heavenly immortal.
The ability of fetal breathing was crucial.
