Are you asking if a photon is a particle or a wave? It is widely known to be something that our brains have trouble understanding, since it behaves as both at

Are you asking if a photon is a particle or a wave? It is widely known to be something that our brains have trouble understanding, since it behaves as both at the same time. Thus, "shut up and calculate!" as the response when students try to figure out what quantum physics "means."