The meaning of solar terms and vernal equinox

The vernal equinox is the midpoint of 90 days in spring. One of 24 solar terms, the Gregorian calendar is about March 20th every year. On this day, day and night in the northern and southern hemispheres are the same. When the sun is at 0 degrees of the yellow meridian (vernal equinox). On the vernal equinox, the sun shines directly at the equator of the earth, and the seasons in the northern and southern hemispheres are opposite.

After the vernal equinox, the position of the sun gradually moved northward, and the days began to get longer and the nights began to get shorter. In ancient times, the vernal equinox was also called "Old China", "Old Night Equinox" and "Mid-spring Moon".

Dong Zhongshu in the Han Dynasty wrote "The Spring and Autumn is full of dew, Yin and Yang are up and down": "As for the mid-spring moon, Yang is due to the east and Yin is due to the west, which is called the vernal equinox. The vernal equinox is half yin and half yang, so it is cold and summer day and night. "

The meaning of solar terms and vernal equinox

According to "Moon Gathering Order 172": "In mid-February, it is divided into 90 days and a half, so it is called minutes." Another article, Spring and Autumn Stories, Up and Down of Yin and Yang, said: "The vernal equinox, Yin and Yang are also half-phase, so it is cold and summer day and night." There is a "Li Mingshi Yi" cloud: "The dividing line, the point where Huangchi intersects, the sun is here, and the day and night are equally divided." Therefore, the significance of the vernal equinox has two aspects: first, it refers to the equal division of day and night time; Second, in ancient times, it was spring from beginning of spring to long summer, and the vernal equinox was in the middle of three months, which divided the spring equally. After the vernal equinox, it is warm in bloom and warm in bloom.

What does the vernal equinox symbolize?

The vernal equinox is the representative of mid-spring. At the vernal equinox, the sun shines directly at the equator, and the time between day and night is equal all over the earth. Therefore, the ancient vernal equinox and autumnal equinox are also called "equinox", and there is a folk proverb that "vernal equinox and autumnal equinox are equally divided day and night". After the vernal equinox, the overwintering crops in most parts of China have entered the spring growth stage, and there is an agricultural proverb: "When wheat starts at the vernal equinox, it is worth a thousand dollars in an instant". At this time, the temperature in all parts of our province continued to rise.

Introduce the characteristics of vernal equinox

The vernal equinox is one of the solar terms reflecting the changes of the four seasons. In ancient China, beginning of spring, Changxia, beginning of autumn and beginning of winter were used to indicate the beginning of the four seasons. The spring equinox season, like the summer solstice, the autumn equinox and the winter solstice, is the middle of a season. The spring equinox is the beginning of spring in the northern hemisphere. Overwintering crops in most parts of China have entered the spring growth stage.

Three seasons of vernal equinox

The mysterious (yuan) bird arrives: Yan Laiye.

Thunder is the sound: thunder is the sound of yang, and it can't go out in the shade, so thunder is exciting.

First electricity: electricity is the light of the yang, the light is invisible when the yang is weak, and the yang is restrained in the yin. Its light is hair, so it begins to lightning.

What vegetables should I eat at the vernal equinox?

Chinese toon

Toona sinensis in the vernal equinox and solar terms is fragrant, crisp and delicious, with the best taste and nutrition. Chinese medicine believes that Toona sinensis is bitter in taste and cold in nature, and has the effects of clearing away heat and toxic materials, invigorating stomach and regulating qi. Its flavor is fragrant, and it can strengthen the spleen and stimulate appetite. Toona sinensis is also a good medicine for enteritis, dysentery and urinary system diseases. Modern nutrition research also found that Toona sinensis contains vitamin E, which has a strong anti-aging effect.

Lettuce with loose leaves

During the vernal equinox and solar terms, people should pay attention to maintaining a balance between yin and yang in spirit, diet and daily life. Youmaicai contains a lot of vitamins and nutrients such as calcium, iron, protein, fat, vitamins A, B 1, B2, etc. It is the top grade of raw vegetables and is known as "phoenix tail". Youmaicai has the effects of lowering cholesterol, treating neurasthenia, clearing away dryness and moistening lung. It is a kind of vegetable with low calorie and high nutrition. Proper consumption will help you sleep.

Mushroom

After the vernal equinox, human metabolism is vigorous, blood circulation is accelerated, respiratory and digestive functions are strengthened, and endocrine hormones, especially growth hormones, are secreted. Children in the growth and development period are the best time to grow up.

Tall people can't live without vitamin D, mushrooms are rich in vitamin D, and dried mushrooms also contain more minerals such as calcium, phosphorus and iron. The iron content is more than 8 times higher than that of spinach, and the zinc content is more than 3 times that of milk powder and soybean. These are all indispensable minerals for human body function, and mushrooms can be used as a good supplementary source.

Of course, after eating mushroom rice, don't forget to bask in the sun, because vitamin D can only be absorbed by the human body if it is converted into vitamin D3 by ultraviolet rays.