If summer orders are placed in the first month. Meng Chunxing's summer vacation comes from Huainanzi. The original text is Meng Chunxing's summer vacation, when it rains from time to time, the vegetation falls early and the country is afraid. If summer comes out in the first month, there will be storms that don't arrive on time, premature aging of vegetation, and panic disasters throughout the country. If the autumn season is issued, there will be disasters such as great plague, whirlwind rainstorm and weeds.