People in ancient China believed that the sun was the strongest on the fifth day of the fifth month each year, that is, on the day of the Duanwu Festival, also called the Duanyang Festival. Therefore, metal items forged on this day would have the power to dispel evil spirits due to their abundance of Yang energy. People then believed that on the day of Duanwu one could forge a sword of pure Yang energy.
Let's take a look at the awe-inspiring righteousness of the unity of man and sword through sword dance.