Look at the sky, there are four distances and four unique. What is the date of the four departures?

The day before the vernal equinox, autumnal equinox, summer solstice and winter solstice in the four solar terms is called "departure from the sun" in numbers. There are four such days throughout the year, so it is called "four days away from the sun".

"Yumen Jing" said: "Those who leave, Yin and Yang belong to the previous dynasty." Equinox and autumnal equinox, even the summer solstice and winter solstice. The day before means the day before. The day before the vernal equinox is called "Spring Festival". The day before the summer solstice is called the fire prevention period; The day before the autumnal equinox is called the golden calendar; The day before the winter solstice is called water separation. The word "Four Away from the Sun" must be written on the "Yellow Calendar", which is the day before beginning of spring, Changxia, beginning of autumn and beginning of winter in the four solar terms, and is called "Four Away from the Sun". "Yumen Jing" said: "Four unique people, four stand before a Chen Ye." There are four "unique days" in a year. Julie, that sounds scary, right? In fact, it is "beginning of spring Wang Mu Shui Jue, Long Summer Fire Wang Mu Jue, beginning of autumn Jin Wang Tu Jue, beginning of winter Shui King Wang Jue". Therefore, the first day is definitely also. " If the wedding or engagement date you choose is a "perfect day", there is absolutely nothing to envy, so be sure to check it carefully on the calendar! Metaphysics, four days from the sun, four days from the sun, is the time when the four seasons intersect and the four seasons change from yin to yang. This reminds me of the research on chaos mechanism in the frontier science and technology field in recent years. I think that when the system reaches a certain critical value, there will be a phenomenon of order and chaos between systems. Is there any connection between the two? In the culture of choosing days and numbers, there are eight days in a year that you don't have to consider and you can never choose.