The wisdom of the five elements is as ancient as the history of humanity (which is far older than we are made to believe by classical education). The five elements are the base of the various energies and qualities that make up our reality, and have different properties that are expressed in all aspects of life.
Colours, geometries, tastes, emotions, environments, architectural design, climates, way of living, furniture, foods, shapes can be all categorised according to the five elements.
