"Imperial Brother, ahead lies thousands of mountains and rivers, favor not the soil of your homeland over the gold of foreign lands."
Outside the walls of Chang'an, a sea of people, countless in number, gathered to bid farewell to the Holy Monk Xuanzang on his Journey to the West for Scriptures. Li Shimin held a cup of clear wine, scooped up a little gravel from the ground, and sprinkled it into the cup before speaking to Jiang Liu.
Jiang Liu took the cup from Li Shimin's hands, with great solemnity, drank it in one gulp, and handed it back to him, saying, "Your Majesty, rest assured, this monk understands and will surely not forget his original intention today."
As he took back the cup, Li Shimin nodded in satisfaction at Jiang Liu's response.
