"Yes, you are correct. There is crystal dust in the air because the entire ground is made out of regular dirt and crystals."
"With every gust of wind, a tiny amount of crystal will become airborne and be absorbed into your body to absorb before later transforming into crystal energy. Just be careful not to inhale too much dust, or you will die." Immortal Miessy said in a casual tone as if she wasn't aware of how dangerous she revealed this world was to mortals.
For immortals and immortal cultivators, inhaling crystal dust wouldn't harm them significantly since they could still absorb it. It simply would be extremely inefficient and take much more time than using their hands.
Even if they could, their control over their own bodies was excellent, and they could remove the excess crystal dust from the bodies with some time. But for mortals, unless they were martial artists, they would suffer a great deal from having crystal dust slowly accumulating in their lungs.
