According to legend, a long time ago, there was a farmer who lived at the foot of the mountain. He is diligent in farming and leads a rich life. One day, a fortune teller couldn't find a place to live, so the farmer invited Mr. fortune teller to his house to entertain him and stay overnight. Mr. Divination is very grateful. Before leaving the next day, he said to the farmer, "You have a disaster on September 9, and you'd better move to a high place with less vegetation." The farmer has a grain of salt about Mr. Divination. Just in case, the farmer and his family moved to the top of the mountain before September 9, where there was almost no vegetation. In the early morning of September 9, when they stood on the top of the mountain overlooking their home, it was already a sea of fire. At this time, the fire spread along the foot of the mountain. Fortunately, there was not much vegetation where they lived, so they survived.
3. The story of this farmer's family climbing a mountain to avoid disaster on September 9th quickly spread among the people, and people followed suit and moved their family to a higher place on September 9th to prevent accidents. After a long time, people find that it is not a good idea to move every year. Besides, there are no mountains on the plain, so it is impossible to climb them. People finally came up with a good idea to eat cakes on the Double Ninth Festival. Because of the sound of "cake" and "high", eating cake means climbing high to eliminate disasters. Since then, the custom of eating cakes on the Double Ninth Festival has been formed.