Original Chinese Opera
The Empress Xiao ends up in Tujie, in ancient China. Li Yuan invites her to come back but she considers Li Yuan's request fake and risky. Only when the new Emperor promises her not to tarnish Yang Guang's memory, to carry on his great cause and to let her be buried with him, she consents to came back, focusing more on the logistic aspect of the Grand Canal than on the communication with the public.
The new Emperor Li Yuan is aware that this lack of communication was the Sui dynasty's great mistake and he advices his sons not to make it again. He teaches his sons that "People are waters. Water can carry a boat but sink it too. Such apparent law of life will never be forgotten!" Following this advice, the Tang Dynasty accomplishes a long time of prosperity.