music of the spheres
an ethereal harmony thought by the Pythagoreans to be produced by the vibration of the celestial spheres.
For Pythagoreans harmony signified the “unification of a multifarious composition and the agreement of unlike spirits”. In Pythagoreanism numeric harmony was applied in mathematical, medical, psychological, aesthetic, metaphysical and cosmological problems Harmony assured the balance of opposite forces. This numeric harmony could be discovered in rules throughout nature. Numbers governed the properties and conditions of all beings and were regarded the causes of being in everything else. Pythagorean philosophers believed that numbers were the elements of all beings and the universe as a whole was composed of harmony and numbers