It's just that the location of the zodiac is the same as the solar calendar in China, and the distribution of the 24 solar terms and the 28 nights is the same, which is why the zodiac is integrated into China astronomy. The formation of China planetarium astrology system itself is based on the ancient astrology theory, so the concept of constellation is naturally used by astrology. He not only used astrology, but also played a great role in agriculture and weather forecast.
In fact, "the auspicious day of the ecliptic" is explained in a great sense from the weather forecast. Imagine what will happen to activities such as marriage, funeral, business cooperation, building breaking, business trip, tourism, and even natural disasters? I don't think anyone wants this to happen.
The word "auspicious day" is not a superstition, it represents a longing for all good things, which is understandable. As for the "old calendar" that guides you to find a good day to see a doctor, make clothes, even take a bath and get a haircut, you don't have to abide by it. Because that is a thing of the past, there are indeed some dross in traditional culture. When we inherit and carry forward traditional culture, we should "take its essence and discard its dross". Make the past serve the present and make foreign things serve China. "The auspicious day of the ecliptic is an example of the combination of Chinese and western.