Wu Zixu, along with Prince Jian's son, Prince Sheng, hoped to flee to the state of Wu.
Wu Zixu, however, was a wanted man.
He and the young prince were constantly pursued by soldiers.
King Ping also ordered a very tight controls over the state's borders to catch Wu Zixu.
As Wu Zixu approached Zhaoguan (昭关), the last pass to the state of Wu, he sought the help of the physician Donggao Gong (东皋公), who recognized him as Wu She's son.
Donggao Gong felt deep sympathy for Wu Zixu's plight and offered to help him escape across the border.

According to legend, Donggao Gong gave refuge to Wu Zixu in his home for a week.
Under enormous stress, Wu Zixu's hair turned completely white and his facial features aged greatly.
The change was a blessing in disguise as Wu Zixu’s changed appearance helped him to escape and head to the state of Wu.
Wu Zixu, along with Prince Jian's son, Prince Sheng, hoped to flee to the state of Wu. Wu Zixu, however, was a wanted man. He and the young prince were constantly pursued by soldiers. King Ping also ordered a very tight controls over the state's borders to catch Wu Zixu. As Wu Zixu approached Zhaoguan (昭关), the last pass to the state of Wu, he sought the help of the physician Donggao Gong (东皋公), who recognized him as Wu She's son. Donggao Gong felt deep sympathy for Wu Zixu's plight and offered to help him escape across the border.
According to legend, Donggao Gong gave refuge to Wu Zixu in his home for a week. Under enormous stress, Wu Zixu's hair turned completely white and his facial features aged greatly. The change was a blessing in disguise as Wu Zixu’s changed appearance helped him to escape and head to the state of Wu.
Wu Zixu