But the reason Wang Ye did this was because the dense forest and the curtain of rain severely impaired his vision. His eyes nearly lost their ability to lock onto the enemy, barely managing to discern directions.
In such a situation, blocking out vision and relying solely on smell and hearing for positioning was actually the most prudent method, because the disrupted vision could easily confuse his sense of direction and affect the function of the other four senses.
It's similar to how a blind person's hearing can be better than that of an ordinary person. The human brain has a function called neuroplasticity. Simply put, the brain can make adaptive adjustments based on changes in the body, and when a blind person loses their sight, the brain focuses more on processing auditory information. Over time, hearing becomes more developed due to the brain's habitual changes, creating the impression that "when God closes a door for you, He surely opens another window."
