Why do you say an autumn rain and a cold?

The reason of one autumn rain and one cold:

The first is the natural cold. "One autumn rain and one cold" is because in autumn, cold air enters most parts of China from Siberia. When it meets the gradually weakening warm and humid air in the south, it forms rainfall, which is what we often call the "cold front" phenomenon. The cold air going south again and again often causes rainfall again and again, lowering the local temperature again and again. In addition, at this time, the direct rays of the sun gradually move southward, and the light and heat irradiated by the northern hemisphere decrease day by day, which is also conducive to the enhancement and southward movement of cold air. After the cold air went south several times, the local temperature became very low

The other is the "cold" in people's minds. Lu You, a poet in the Southern Song Dynasty, once wrote a poem "Autumn Rain", "In late autumn, the leaves are slightly wet, the rain is rustling, and the chill is pressing. I watched the broken clouds return to Gukou, and I sent them to Jianggan with the new geese. Turbid mash is easy to bear ordinary debts, but it is difficult for retired scholars to blame officials. Thank you for your reputation. It's nothing. The children in front of the lamp are talking. "This poem describes Lu You's psychological feelings after seeing this autumn rain. Seeing this scene, he thought of the right and wrong in the world, which made people sigh. Another example is Li Qingzhao's "Sound Slow": "The phoenix tree is raining and dripping at dusk. This time, what a sad sentence! "Looking at the chilly rain and the chilly wind, falling flowers and leaves, for an instant, an inexplicable sadness spread in my heart and air for a long time.

An autumn rain and a cold. In a blink of an eye, autumn has gradually deepened, and the weather is cold, especially in the morning and evening, with a chill. Continuous autumn rain, with a slight coolness, quietly came to the window with light steps. The cold wind brought rain, the rain swept in the wind, and the cold wind rushed in. Listening to the sound of falling flowers, I know that it is really the period of autumn rain and cold season replacement. Autumn rain is not so much the swan song of the season as autumn rain, which is a kind of mind, a kind of talk and a kind of feeling. Listen attentively, like the wind caressing your heart, with worries, refreshments and tears; Listen attentively, like a silently blooming flower, with flowers, memories and thoughts; Listen attentively, like a poem spinning time, with silence, indifference and anxiety.

Autumn rain brings happiness and sadness to people. There is an important festival in autumn, Mid-Autumn Festival, which is a reunion festival. Those wanderers will miss their relatives far away on this day, thinking that they can't reunite with their families, have a few hot meals together and try moon cakes. How sad and sad they are! Because of the season, animals and plants are ready to resist the cold. In autumn, everything slowly begins to sleep, and the fallen leaves on the ground are slowly taken away by the wind and rain.