They are geometrical forms which are said to act as a template from which all life springs. The aesthetic beauty and symmetry of the Platonic solids have made them a favorite subject of geometers for thousands of years. They are named after the ancient Greek philosopher Plato who theorized that the classical elements were constructed from the regular solids. To the Greeks, these solids symbolized fire, earth, air, spirit (or ether) and water.
Thanks to Johannes Kepler for figuring out that if you take each of the Platonic Solids and encase each perfectly within a sphere, and then nest them all inside of each other, they produce six layers that correspond to the relative planetary orbits of Mercury, Venus, Earth, Mars, Jupiter, and Saturn. -Nassim Haramein 4-6-14