Twenty-four Mountains, also known as Twenty-Four Roads, refers to the twenty-four directions within the 360-degree circumference of the Yin-Yang House. On the basis of 45 degrees each of the eight directions of east, south, west, north and southeast, southwest, northeast and northwest, it is divided into three directions, each of which is 15 degrees, a total of 24 directions.

Respectively, the twelve earthly branches of Zi, Chou, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu, and Hai, the eight of the ten heavenly stems of A, B, C, D, G, XIN, REN, and Gui, as well as the four hexagrams of Qian, Kun, Gen, and Xun in the eight trigrams, represent a direction.

The Yellow Emperor's "House Classic" cloud: "Twenty-four roads, with the size of the house, the middle courtyard is divided into four sides for twenty-four roads, ten days of dry, twelve earth branches, Qiangen Kun Xun, a total of twenty-four roads is also." Among them, the ten heavenly stems are actually eight stems, and Wuji represents the central soil.

The representative characters of each position are: due east wood hexagram: A, Mao, B; The southeast Muxun hexagram: Chen, Xun, Si;

Due south fire away from the hexagram: C, noon, Ding; Southwest Tukun hexagram: Wei, Kun, Shen;

Due West Gold Hexagram Position: Geng, You, Xin; Northwest Jin Qian's hexagrams: 戌, Qian, Hai;

Due north water hexagram position: 壬, 子, 癸; Northeast Tugong hexagram position: Chou, Gen, Yin.

The 24 mountains are also matched with the 24 solar terms, in order: A (stunning), Mao (spring equinox), B (Qingming), Chen (Gu Yu), Xun (Lixia), Si (Xiaoman), C (mangzhong), Wu (summer solstice), Ding (Xiaoxia), Wei (big heat), Kun (Liqiu), Shen (heat), Geng (Bailu), You (autumn equinox), Xin (cold dew), 戌 (frost), dry (Lidong), Hai (Xiaoxue), Ren (heavy snow), Zi (winter solstice), Gui (Xiaohan), Chou (Dahan), Gen (Lichun), Yin (rain).

The difference in the orientation of the 24 mountains is full of symbolic meaning of life.

According to the gossip of the heavenly stems: the first birth of a person is like the bud of a tree, and the growth is as lush as a tree, so there is a wood in the east and a wood in the southeast;

People are as strong as the masculine of fire, so there is southern fire; and the thickness of the soil, so there is the southwest soil;

People are old and hard as gold, and the so-called cinnamon ginger is also, so there is Western Gengxin gold;

and decay, such as the slaughter of gold, so there is northwest dry gold;

The death of a person is like ice into water, and the so-called dead are also water, so there is a northern non-decanter water;

And the body is extinguished, and it is turned into soil, so there is the soil of the northeast.

In terms of the earthly branch, a person's life is like a day.

Its conception and formation are also, like the son of a day, ugly, and yin, although dark but tend to be bright.

And it is born and grows, such as the day of the day, the Chen, vigorous and tends to be intense.

And its strong become, such as the noon of the day, the future, the glory is prosperous and lasting.

And its old and decrepit, such as a day of Shen, unitary, golden mangs gradually converge and twilight.

and its death and destruction, like the day of the sun, the darkness and the silence.

In terms of solar terms, a person's life is like a year. Its gestation is like the winter solstice, the cathode and the yang; The beginning of spring, rain, grass and tree buds and fetal breathing; The stinger, the worm wakes up and the man will live; The vernal equinox, the landing also; Qingming, valley rain, wind blows grass and people grow; Mango seeds, summer solstice, seedlings are strong and people are also strong; The beginning of autumn, the summer, the real and the old; Autumn equinox, cold dew, cold invasion, people will be old; Frost falls, winter begins, yin is strong and yang is declining; Light snow, heavy snow, the sun is exhausted and people are extinguished.

In this way, the direction is life, and the life of the clear direction is the auspiciousness of life.