Motion sickness, scientifically known as kinetosis, mainly arises from an overly intense reaction of the vestibular apparatus in the inner ear, which perceives the body's state of motion when shaken by vehicles such as cars. The severity of motion sickness varies from person to person based on the sensitivity of their vestibular apparatus and their tolerance to its signals.
On Earth, the qualities required of a pilot include having a sensitive vestibular apparatus yet strong tolerance. Unfortunately, Wang Qi belonged to the group of individuals with exceptionally sensitive vestibular apparatuses but absolutely no tolerance. Tolerance can be enhanced through training, but given that a Cultivator's perception of their Physical Body only grows with their Cultivation—Wang Qi sadly discovered that he would never escape motion sickness in this lifetime.
