Comprehending a new martial art is different from practicing and getting that martial art to perfection. It is one thing to gain insight into comprehension and another thing to put that thing into practice, making sure it is perfect, taking your prowess to a whole new level.
He immediately knew that his understanding of wind withering was correct because he sensed that the amount of physical strength had increased, and he also felt a change in the feeling of qi. In his hand, the intensity was slightly stronger than usual.
He hadn't been lazing behind, at night he was either cultivating or practicing the wind-withering technique while in the morning he continued the day with his bodybuilding, so it was expected of him that he had enough understanding of him to perfectly comprehend the martial art.