Why is it called Huilongguan?

In fact, Huilongguan used to be called Huilongguan (Guan). Who said that Zhu Yuanzhang rode Deshengmen's horse during the war? A fortune teller told him not to look back, but it would be dangerous to look back. When I came to Huilongguan, I couldn't help looking back, and the swords were all behind me. Just because he turned around, he began to look back, but he didn't feel good, so he slowly called Huilongguan! If you get used to it, you will close it four times. This is what my father told me. He was born and raised here, so he told me the story of Huilongguan! ~ Hehe, this is the origin of Huilongguan.