What does the Rain Festival mean?

Rain is not (knots), but (gas); Beginning of spring is the first month, and it rains in the first month.

Rain begins at about February 19 of the Gregorian calendar every year, when the sun reaches 330 degrees of the yellow meridian. In the Yellow River Basin of China, phenology flew northward and vegetation sprouted, which meant that rainfall in most parts of China began to increase gradually.

Fighting means that the spring breeze blows all over, the ice and snow melt, the climate is humid, and the rain increases, so it is called rain;