Liu bang was drunk in the middle of the night and let a person go forward. The traveler reported that there was a big snake blocking the road ahead. Please let us come back. Liu bang was in a daze, as if he were not afraid of anything, and said, come with me. You are a strong teacher, so what are you afraid of? So he went forward bravely, and Liu Bang cut the big white snake in the way in two with one sword. The road was opened and he walked for several miles. Liu bang was sleepy and fell asleep. An old woman was crying where the snake was killed. Someone asked her why she was crying. The old woman said that someone killed my son, and someone asked, how do you know that your son was killed? The old woman said, "My son Bai Di turned into a snake and was beheaded by Chi Di because he was in the way." . Later, someone told Liu Bang about it. Liu bang was secretly happy after hearing this, and he was quite conceited.