What do beginning of autumn solar terms and beginning of autumn solar terms mean?

1, beginning of autumn is the node where Yang gradually closes and Yin gradually grows, and Yang gradually turns to Yin. Autumn means precipitation, humidity, etc. At the turning point of the year, there is a downward or decreasing trend; In nature, everything begins to grow from lush to mature.

Beginning of autumn doesn't mean the extreme hot weather is over. Beginning of autumn is still in the summer heat period, and the summer heat will not come out until the second solar term in autumn, and the weather is still very hot in early autumn. The so-called "heat is in the dog days" is also called "beginning of autumn drops later", and there is at least "falling" hot weather after beginning of autumn.