The meaning of 49

"April 9" means entering the cold weather from winter to the future, and the fourth nine days are called "April 9". Enter "No.9" from the date of winter solstice. "Counting Nine" is a folk solar term in winter in China. From winter solstice to Sunday, it is called "Jiujiu", every nine days, the first nine days, the last nine days, and so on, until the ninth nine days, the number reaches 998 1 day.