Luopan

The luopan or geomantic compass is a special magnetic compass used in ancient China. It helps people decide the best directions for buildings, places, or objects based on feng shui. This ancient tool has a needle that always points to the south magnetic pole, showing the exact direction.

A luopan is more than just a compass. It holds many details and formulas that guide its use. People trained in feng shui use it to make sure everything is placed in the most balanced and harmonious way possible. This tradition has been important for centuries in Chinese culture.

Form and function

A luopan is like a regular compass but has special features. It has many rings with different formulas on it, called the heaven dial, which sits on another plate called the earth plate. These parts help people find directions very precisely.

Unlike regular compasses, a luopan shows many more directions—24 instead of just 4 or 8. It does not point to the north magnetic pole like most compasses; instead, its needle points to the south magnetic pole. This special design helps people using it to determine exact positions and directions.

Types

Since the Ming and Qing dynasties, three types of luopan have been popular. They share some formula rings, like the 24 directions and the early and later heaven arrangements.

This luopan was said to have been used in the Tang dynasty. It contains three basic 24-direction rings, each related to a different method and formula.

This luopan, also known as the jiang pan or the Yi Pan, includes many formulas used in San Yuan. It has one 24-direction ring and the ring for the 64 hexagrams, among others.

This luopan combines rings from the first two types. It includes three 24-direction rings and the 64 trigrams ring.

Each feng shui master may design a luopan to suit their preference and to teach students. Some designs include the bagua (trigram) numbers, directions from the Eight Mansions methods, and English equivalents.

History and development

The luopan is like a picture of the universe, based on old tortoise shells used for telling the future. It helps people find the right place and time, similar to a special hall called the Ming Tang. The markings on it look like those on a liubo board.

The oldest versions of the luopan are called shì or shìpán, meaning "astrolabe" or "diviner's board." These were found in tombs from between 278 BCE and 209 BCE. They are two-sided boards with special lines for looking at the stars. Along with telling the future for Da Liu Ren, these boards were used to track the movement of Taiyi through nine areas. The design of these boards has stayed almost the same from the shi to the first magnetic compasses. The luopan includes a special diagram called "two cords and four hooks" that has been used since at least the Warring States period. The zhinan zhen, or south-pointing needle, is the first magnetic compass. It was made for feng shui and includes the two cords and four hooks diagram, direction markers, and a magnetized spoon in the middle.