Field alignment needle, 24 mountain direction, used to identify the direction and locate the vertical direction. These twenty-four mountains are represented by twelve earthly branches plus eight dry dimensions respectively. Twelve branches are Zi, Ugly, Yin, Mao, Chen, Ji, Wu, Wei, Shen, You, Xu and Hai, eight branches are A, B, C, D, G, Xin, Ren and Gui, and four dimensions are Gan, Kun, Gen and Xun, which add up to * *.
Extended data:
The compass is mainly composed of a magnetic needle in the center of a disk and a series of concentric circles, each of which represents the ancient people in China's understanding of a certain level of information in the cosmic system.
The ancients in China believed that man's gas field was controlled by the gas field of the universe, that harmony between man and the universe was auspicious, and disharmony between man and the universe was fierce. So, by experience, they put all levels of information in the universe, such as the stars in the sky, everything represented by the five actions on the earth, heavenly stems and earthly branches and so on. , all on the compass.
Geomantic omen is to find the most suitable position or time for a specific person or thing through the rotation of a magnetic needle. Although the concept of "magnetic field" is not mentioned in geomantic omen, the coordination of the directions, orientations and intervals of each layer on the compass implies the law of "magnetic field".
How to use three needles and three tablets:
Three needles and three sets refer to field needles, human board needles and top board needles.
Positioning pins are mainly used in the vertical direction. The use method is to set a compass at Taiji point to observe all directions. The taiji points of Yin House and Yang House are different. The Taiji acupoints in Yangzhai are located in the house, and those in Yinzhai are located in the center of the tomb.
The needles in people's trays are used to remove sand, mainly to see peaks, towers, piles, walls and chimneys.
The sewing needle on the ceiling is used to receive water, mainly depending on the coming and going of water and the direction of the road.