Single pyramidal magnetite crystals are found arranged in layers in the cortex, in the extra-cellular fluid.
Seem to function as liquid crystal oscillators, activated by the tiny magnetic fields produced by dendritic currents
Upon activation the crystals produce a “circular polarized light pulse that travels throughout the body, or travels as a transverse photonic bundle of energy”. (H. Coetzee, Ph.D. Biomagnetism and Bio-Electromagnetism: The Foundation of Life. Future History,
Einstein's idea of the energy body? - really an old idea (REALLY old)