Wang Yongzhu took a look and saw that it was a copy of the Inner Canon of Huangdi. He casually opened a page and slowly read aloud: "In ancient times, there were people who had attained perfect virtue and complete mastery. They harmonized with yin and yang, adjusted to the four seasons, led a secluded life, cultivated their essence and spirit, roamed between heaven and earth, and perceived beyond the eight reaches. This contributed to their longevity and strength, and ultimately, they returned to being true people..."
At this point, Imperial Doctor Du signaled for Wang Yongzhu to stop. He stroked his white beard and after a while said, "Well, learning medical techniques depends on one's talent! Seeing your filial piety, you should first memorize this Tangtou Song, then come back to see me."
On hearing this, Wang Yongzhu knew there was hope. Without saying much, he just accepted the Tangtou Song and expressed his gratitude.
