The beginning of autumn is an important solar term among the 24 solar terms, marking the commencement of autumn. '立Li' means the beginning of autumn, '秋qiu' means the maturity of the grain.

In nature, everything begins to grow from prosperity to maturity. Autumn is the season of harvest, and it is also the season when all things gradually wither away.

The beginning of autumn also means that meteorological factors such as precipitation and humidity are at a turning point in the year, tending to decrease or decrease. This change has an important impact on agricultural production, so people can adjust agricultural production and daily life based on the beginning of autumn.

On the day of the beginning of autumn, people will notice that the temperature gradually decreases and the weather gradually becomes cooler. This is a season that makes people feel comfortable and joyful.

In short, the beginning of autumn is a solar term that marks the beginning of autumn. It reminds people to pay attention to meteorological changes and agricultural production, and is also a season full of joy and harvest.