Alexandra Bruce – Rudolf Steiner, whose teachings led to anthroposophical medicine, biodynamic farming, and the Waldorf school, said that the heart is a seven-sided regular form that sits in an imaginary box in the chest. “Regular” means that all seven sides are identical. Plato described five platonic solids, and Steiner said there was a sixth one. He also said that the heart is not a pump.

This claim was vindicated by Frank Chester, who figured out how to design a seven-sided regular form. This sixth platonic solid is now called the chestahedron, and it fits perfectly inside a cube at an angle of 36 degrees off center to the left, the exact same angle that the heart sits in the chest. Continue reading →