Why is the "Baoan Waist Knife" the lifeblood of the Baoan taboo culture?

There are many legendary stories and legends about the Baoan Waist Knife. According to legend, in the Southern Song Dynasty, the Baoan forefathers blacksmiths, in a Song army stationed outside the city gates to open a blacksmith store, that era, in the territory of China and coexisted in the Southern Song Dynasty, Western Liao, Mongolia, the Jin Dynasty, Xixia, the six regimes of the Dali, the brutal wars between them for many years, the Song army that the blacksmiths in the city gates to make agricultural tools and knives is not safe, they sent troops to drive away the blacksmiths. The blacksmiths said, "We make daily necessities for the people in peace and discipline, and we are not in your way, why do you drive us away? After a quarrel with the Song army fought, blacksmiths strong hands, and tools, a hammer blinded a Song officer's eyes, and then rode a few days, came to the Mongolian army stationed at the entrance of a city, the Mongolian guards asked to come to the blacksmiths, it is very welcome. Because, Mongolian soldiers are from the grassland tribes, lack of all kinds of craftsmen. Let them open a blacksmith store in the city. Later, because of good craftsmanship, the Yuan Dynasty into the military households, for them to make cavalry sets and weapons, and then followed the Yuan Dynasty army came to the security place to settle down. This story from the other side reflects the history of the Bao Bao also soldiers and craftsmen.