Feng Shui is like being in the right place at the right time, feng Shui is like an onion; it’s got so many layers it would be impossible to cover everything.
I have chosen to concentrate on one layer (the oldest) 
Xuan Kong Flying Star feng shui or Xuan Kong Fei Xing is the oldest discipline in Feng Shui, it is an integration of the principles of Yin Yang, the interactions between the five elements, the eight trigrams, the Lo Shu numbers, Chi (Chee), and the 24 Mountains, by using time, space and objects to create an Fying Star chart to analyse the Past, Present and the Future.