Yang Qing could feel something stir within him. He could feel everything within him from his soul to his body to his internal palace realm, slowly transform as some grand formless power continuously cleansed him from the inside out. He could feel his thoughts clear up, and a great elevation in his sense of self.
Yang Qing could instantly tell what was the source of the transformation, it was his Dao. Something within it had been activated with his act. Some of the profound truths and power contained within it had been triggered by his actions and were now baptizing and transforming his body.
Yang Qing closed out all his senses as he focused his entirety on the presence of his Dao. For one to break through to the palace realm they needed to grasp a form of Dao which they would then use as the key to open the doors of the palace realm. Once inside, the amount of Dao they have grasped would be used as the material and foundation to build their internal realm.