One thing that it owes to is that Feng shui is intuitive in nature and is practical. While it has often been dismissed as superstition, a bull and a crap, by those who are against it, its longevity could be traced to the benefits of all those who applied its principles. This proves as always, that the best argument is never good enough when it is aimed against success. The most powerful of these and most widely in use are symbols for wealth, health, and happiness and long life. Not much different from the desires of cultures with a different set of orientation except that in Feng shui these are augmented by the use of representations. To attract money, Feng shui practitioners will hang three coins that are tied together and are attached to door handles especially the front doors. For persons with kua number that is equivalent to 1 the southeast is your sheng chi direction. Choose a room within the house that is located in this direction where you can conduct income-related activity. For those whose kua number is 2, your sheng chi direction is the northeast. When you are planning wealth-generating activity, focus them in this direction. Once you know what the bagua map indicates, the things that you bring to the classroom and how you arrange them should be in harmony with these elements. Arranging the classroom according to what the quadrants in the octagon in the bagua indicates will improve the results that you want to achieve in it. Open doors and windows every now and then, this will let the stale air out and the fresh ones in but clean the dust as soon as you can. Never let air openings be closed for long periods at of time, as this will prevent the chi from entering the house. Keep toilet doors closed even when they are very clean. It represents vegetation and hope. Put in greens but then, images and pictures where thunderclouds with lightning also helps. The Taichi zone, your health zone. Your health energies get its best direction here. This zone enhances your spiritual, intellectual and physical sense of wellness. It is best to treat this zone as your exercise area.