Energy is physically quantified when it is trapped inside an electron or nucleus or nucleon. When this energy is released a photon is emitted. Up to the emission, the quanta of energy can be visualized. On emission the photon comes into contact with the surrounding sea of energy. In other words radiation is not the photon or energy in all by itself.
Radiation is the perturbation caused by a photon on the field of energy.
In short if we visualize an 'energy packet' or 'quanta' physically trapped inside an electron, nucleus, neutron or proton, the quantum mechanics and the theory of Relativity may seem to come towards each other i.e. unification . Disclaimer I am fully aware that I am least qualified to tinker with the equations proposed by Albert Einstein and Max Planck. I have been working on this for the past twelve years. Yet I was a bit afraid to come out in open. I no longer feel guilty of altering the equations of the greats.