Make a phone call at 4: 05.

At four o'clock, a number is "365", representing the number of days in a year.

The four seasons refer to spring, summer, autumn and winter, and the five spirits refer to Jin Mu.

The five elements in ancient times matched the four seasons: spring was wood, summer was fire, late summer (late summer March, that is, June of the lunar calendar) was earth, autumn was gold, and winter was water. "Treating five qi" refers to studying the changes of qi in four seasons.

The correspondence between the five elements and the four seasons was originally to divide a year into five seasons with different lengths, that is, spring is wood and lasts for three months; Summer is divided into two parts: summer and the last month of summer, with two months of summer and the last month of summer 1 month; Autumn is golden, lasting for 3 months, and winter is water, lasting for 3 months. This collocation method shortens the mixing time of soil and affects the mixing time of fire.

In the future, the last18th day of the four seasons will be used for soil preparation, that is to say, the number of soil preparation days is 72 days, but these 72 days are distributed in the four seasons. In this way, not only the idea of "four directions made of earth" and "five elements are not more expensive than earth" are retained, but also the cooperation between the five elements and the four seasons is roughly neat.

Earthly branches and five elements:

Five stars, called five latitudes in ancient times, are five planets in the sky. Wood is called the old star, fire is called the twinkling star, earth is called the town star, gold is called the white star and water is called the morning star. Five elements running, divided by 28 stars. Because its orbit is not far from the solar path, the ancients used it to mark the sun. The five stars generally appear in the Arctic sky in the order of wood, fire, earth, gold and water. Each star has a 72-day line, and the five stars circle 360 degrees.

The river map drawn according to the five-star astronomical phenomena is also the source of the five elements. Because before the winter solstice of 1 1 month every year, Mercury can be seen in the north. When the winter weather comes, everything is dormant, and there are only ice, snow and water on the ground. This is how the concept of water travel was formed. After the summer solstice in July, Mars was seen in the south. It was summer weather and the ground was very hot, so the concept of fire line was formed.

At the vernal equinox in March, Jupiter appeared in the east. Just as spring came, plants sprouted and grew. The so-called "spring comes to the world to know the vegetation", and this is how the concept of wooden walking is formed.