Feng Shui, a Chinese tradition for 6000 years aimed simply to make people healthy, happy, and wealthy, is on the rise in the Western world nowadys.
It comprises some basic ideas, ventilating your rooms and avoiding still water for example, and taboos such as never to stand a mirror in front of your bed as to frighten yourself or reflect something that's not supposed to be.
Superstitious as it may be in some people's eyes, Feng Sui is, after all, a time-tested convention in China, and I'd rather believe the supernatural exists and lasts for a reason.
2007-01-11 21:38:52 補充：
..., and taboos such as standing a mirror in front of your bed, as you might get yourself frightened or seeing something not supposed to be reflected.