243 Comparison drawn to natural physiques

Feng Xin was mildly surprised by Yang Qing's smile that came out of the blue but he decided to ignore it as he listened to Yang Qing's own experience when he tried to sense his Yin-Yang jade bones. 

When Yang Qing finished his explanation, Feng Xin closed his eyes as he tried to try and sense his ice soul jade bones using his core as a conduit to it. However, no matter how hard he tried, he couldn't see anything, all he felt was the same feeling and sensation he got when he was in silent meditation, absolute blankness, and tranquility from the circulation of his cultivation art.

"I can't sense anything Qing," Feng Xin said after he spent close to ten minutes and still got nowhere.