(I)

During the Rebellion of An and Shi in the Tang Dynasty, Yang Yunsong, a doctor of Zijin Guanglu and Zhanglingtai, brought feng shui books out of the imperial palace and settled down in Ganzhou, where he taught this technique among the people, thus preserving this magical and important traditional culture.

Yang Yunsong as Yang Gong feng Shui master, not only created a complete theory of feng shui, feng shui tools of the compass also carried out a reasonable transformation. Site 24 mountain plate is created by Yang Gong.

Before Yang Gong, there was no complete twenty-four mountain plates, only eight trigram plates and twelve Earth branch plates.

The Han Dynasty compasses, though marked by eight trigrams, eight trigrams, and twelve trigrams, did not divide the degrees equally, but divided the degrees into three layers, which did not share the same degree.

Yang Gong rearranged it and allocated the eight trigrams, the heavenly trunk and the earth branch completely on the plane orientation, which was an epoch-making creation.

The site of the 24 mountain astrolabe, that is, 72 dragon plate, was created by Yang Gong in his later years.

Through his long-term practice of geography, Yang Gong found:

Yin-yang and five elements exist in all directions. The distribution of Yin-yang and five elements is determined according to the attributes of the eight diagrams and five elements, which is inconsistent with the actual situation.

Through repeated research, the upper heavenly stem was dominated for the twelve earth, and the five elements of Na Yin were used to express the five elements of the dragon. It is called the five elements of Topsy-turvy.

"Green bag Ao language" in "upside down, 24 mountains have jewelry; The "toptopy" mentioned in the 24 mountains has fire pits refers to the five elements of Nayin of the 72 dragons.

○ Tianpan was created by Yang Gong.

Yang Gong found that there was a large error in water drainage with the site in the practice of Jiaozi. According to the principle of left rotation of Tiandao and right rotation of tunnel, Tianpan Shuangshan was created for sand drainage and water drainage.

Only the celestial disk of the compass is a double mountain, the other disk is not a double mountain.

The ancients believed that the dragon came from the sky and belonged to the heavenly system, which was Yang. Water, which flows in the earth, belongs to the earth system and is Yin.

Due to the displacement effect caused by the relative motion of the left and right rotation of heaven and earth, the celestial disk used for water should be shifted to the right. Therefore, Yang Gong shifted it 7.5 ° to the right on the position of the site.

The five elements of Shuangshan are three in five elements, Tianpanrenzi Tonggong, Guichou Tonggong, Genyin Tonggong, Jiamao Tonggong, Yichen Tonggong, Xunsi Tonggong, third Wu Tonggong, Ding Wei Tonggong, Kun Shen Tonggong, Geng you Tonggong, Xin Xu Tonggong, Ganhai Tonggong. The middle of Shuangshan is opposite the twelve branches of the site.

 Chen Xu Chou Wei is the tomb of water, fire, gold and wood respectively. It is an important place for the coitus of Yin and Yang of dragon water, known as the four major water mouths.

Therefore, the territory, heaven plate and seventy-two dragon plate three together are commonly known as "Yang plate".

Later in the Song Dynasty, Lai Buyi introduced the twenty-eight night star five elements, and added a person plate, dedicated to eliminating sand out of evil. The 24 hills of the human disk rotate 7.5 degrees counterclockwise than the 24 hills of the site. People plate is also called "Lai pan".

(2)

1. The compass consists of three parts:

1. Tianchi

Also known as the bottom of the sea, or compass.

The heavenly pool of the compass consists of a thimble, a magnetic needle, a submarine line, a cylindrical outer box and a glass cover, which are fixed in the center of the inner disk.

There is a thimble with a pointed head in the center of the bottom surface of the circular box, and there is a concave hole in the center of the bottom surface of the magnetic needle. The magnetic needle is placed on the thimble.

The arrow end of the compass points south and the other end points north.

There is a red line on the bottom surface of Tianchi Lake (the sea floor), which is called the sea floor line. There are two red dots on both sides of the north end. When used, the north end of the magnetic needle should coincide with the sea floor line. The seafloor of modern compasses is painted with crosshair, and the top of the crosshair is printed with the east, west and west respectively. When used, the north end of the magnetic needle should point to the north end of the seafloor crosshair, and the magnetic needle should coincide with the north and south lines of the seafloor.

2. Inner plate

It's the rotating disk right outside the compass.

The inner plate is printed with many concentric circles, a circle is called a layer.

Each layer is divided into different equal parts, some layer grid more, some layer grid less, the least is only divided into eight grids, grids the most of a layer has 384 grids. Each grid is printed with a different character.

There are many kinds of compass, some have more layers, some have less, the most has fifty layers, the least is only five.

The various contents of the compass are engraved on different coils (layers) of the inner disk, and are the main components of the compass.

Each school of feng shui puts the main contents of its own school on the compass, making the Chinese compass an encyclopaedia of Chinese techniques.

3. Outer plate

The outer plate is a square, is the tray of the inner plate, there is a small hole in the outer center of the four sides, and the red line becomes the Tianxin ten way, which is used to read the contents of the inner plate.

The ten paths of the heart of heaven are required to be perpendicular to each other, and the new compass just bought must be calibrated to the external disk before it can be used.

Compass is a basic tool to measure the magnetic azimuth of the earth surface, widely used in military, navigation, surveying and mapping, forestry, exploration, construction and other fields.

The compass is actually a tool used to measure the square position of the earth by the principle of compass positioning.

The compass is used in feng shui for grong, sand removal, water absorption and to determine the orientation of buildings.

Ii. Types

There are three kinds of compass on the market today.

They are three - way compass, three - way compass and three - way comprehensive compass.

Learning feng shui should be based on the selection of a three-way composite compass.

The shape of the compass is an inner circle and an outer square, and the inner circular disk of the compass can be rotated. There must be a 360 degree scale around the inner circle and two fixed cross longitude and latitude lines on four sides around the outer square.

As there are many schools of feng shui that differ from each other and use different compasses, compasses can be divided into many types.

Commonly used are ternary school of "ternary disk, triadic school of" triadic disk "and ternary school and triadic school of general comprehensive disk - triadic triadic dual-purpose disk.

Among them, the three Yuan dish, also called "Jiang Pan", has a total of 64 hexagrams on the plate.

Three disc is also called "Yang Gong disc", the main plate has three layers of 24 mountains.

The situation is mainly used with three disks, and the management style is commonly used with three disks.

But modern feng shui is a combination of situation and natural gas, so most of the comprehensive disk.

Other common compasses are the Yi disk, the Xuan Kong disk, and the unique disk used by different schools.

But no matter what school of compass, there must be a middle layer with the direction of the 24 hills, from the north, in the sequence of Renzigui, Chougenyin, Jiamaoyi, Chen Xunsi, Bingwuding, Weikunshen, Geng Youxin and Xu Qianhai.