'WE FEEL ENERGY.OUR FEELING COULD BE DIRECTLY LINKED WITH OUR STATE OF BEING IN TIME'.IN THAT SENSE WE THINK THAT 'ENERGY IS A PURE TEMPORAL BEING.IT MUST NOT HAVE ANY SPATIAL EXTENSION'.IN MINKOWSKIAN SPACE,PHOTON DOES NOT HAVE ITS OWN REST FRAME OF REFERENCE.IT TRAVELS WITH INFINITE RAPIDITY.[RAPIDITY THETA IS RELATED TO VELOCITY V BY THE EQUATION tanh[THETHA]=V/C.HERE C IS THE SPEED OF LIGHT IN FREE SPACE.WHEN V=C,THETA BECOMES INFINITY.SINCE PHOTON DOES NOT HAVE ANY SPATIAL EXTENSION,WE MAY SAY THAT PHOTON IS QUANTIZED ACTION PER UNITE TIME.