What does "Festival" held in Su Wu mean?

At the beginning of the Western Han Dynasty, the imperial court always adopted the policy of closeness and forbearance to the Huns in an attempt to obtain temporary peace on the border. However, the Huns became more and more arrogant, invading border counties year after year and plundering people and livestock. When Emperor Wu of the Han Dynasty won many battles against the Huns, he wanted to repair the alliance by exchanging envoys. In BC 100, the corps commander Su Wu was sent to Xiongnu with a series of festivals. After the Huns, the state changed its mind, imprisoned Su Wu, and persuaded him to surrender with both hard and soft measures. Su Wu was not afraid of beheading and was not moved by senior officials. In order to maintain the dignity of the Han dynasty, he never rebelled against the Han dynasty and showed lofty integrity and integrity. During the imprisonment of 19 years, Su Wu suffered inhuman hardships. In the days when he was sent to pasture in a deserted place in Beihai, Su Wu was hungry, and his only companion was Lian Jie, who represented the imperial court.

So, what is the "festival" in Su Wu's hand? "Jie" was made of bamboo in the Han Dynasty, with a handle of 8 feet long and a yak tail on it, so it was called "Jing Jie". The "Sacrifice" held in Su Wu in those days was awarded by the emperor himself, indicating that the organizer was the authentic representative of the emperor. For the envoy, the festival he held was a symbol of the emperor's country, and people were present at the festival, which was the spiritual pillar of Su Wu's "Han Festival" when he was detained in a foreign country 19. Because Su Wu is herding sheep with a continuous knot, no matter when he sleeps or gets up, all the ears on the knot fall out. When he returned to Chang 'an after 19, people saw Su Wu with white hair and beard holding a smooth knot in his hand, and no one was unmoved, saying that he was a real gentleman.

It is precisely because the ancient envoys took "Festival" as the token of the country's representative that the plenipotentiary ambassadors and ministers who took "credentials" to their posts in modern times were also called diplomatic envoys by the world.