Geomancy, commonly known as "Feng-Shui", has a four thousand years history dating back to ancient China. Chinese legend told of a giant tortoise, bearing the nine-grid Lo Shu Diagram on its shell, emerged to the surface of water and surprised the people around. The discovery of the Lo Shu Diagram promoted the further development of Feng-Shui.
For the YIN Dwelling, people look for a burial ground for their dead parent(s) / grandparent(s), the right selection of sites benefits them and influences their future and/or fate of their descendants. However, following by the increase of population of human beings and restrictions of burial grounds, finding a distinctive, isolated ground that suit most of the YIN Dwelling Feng-Shui requirements with ample front and back surrounding space is increasingly difficult.
For a suitable burial site, the Environment Feng-Shui and Flying Stars practices are the key theories to rely on. The factors under consideration are:
In the YANG Dwelling category, all three theories are relevant in terms of the selection of a good site for individual dwellings. A good house is a place where people live in comfortably and which is able to magnify your good fortune. Flying Stars Theory emphasizes on the continuing changes of effects Fung-Shui has on the dwelling which affect the living individual who dwells in it. Since the stars in the cosmic space circulate around the orbits and interacting forces continue to affect our environment, the Feng-Shui optimal directions will also vary with time as stated in Sim's Metaphysics Theory. Nothing is fixed and everything is influenced by the switching Nine Flying Stars and the coupling effect of the stars of backing and facing directions of your house.
Time dimension relating to Feng-Shui is divided into 3 phases: upper, medium, and lower phases (each phase means 180 years). Each phase is sub-divided into nine bi-decades (nine 20-years). Year 1999 is within the lower phase 7th bi-decade.
The Eight Housing, stresses on a static Feng-Shui effect on individual depending on one's birth year. The theory classifies people into 2 types: east four life and west four life. Different life type has different Feng-Shui effects in the main eight directions. And the effects descend in the following order:
For example, a female born in 1989 has the same eight housing life type of Sun with eight characteristics as follows:
Environment Theory is an important assertion in comfortable dwelling layout. The criteria set by the theory on the main internal layout and external environment requirement is important in Feng-Shui practice.