A very important aspect of all, that helps one understand and appreciate the relationship between one Gua and another, as well as forms a basis for better understanding of Chinese Metaphysics.

  

It is based on the assumption that Qi, the lifeblood or “soul” of the universe, is an indestructible force, that changes with time, and affects individuals, land, properties or dwellings (known as yang house Feng Shui) and most importantly, in the Chinese context, it governs burial sites (known as YIN house Feng Shui)