This article is based on a concept; "During the conversion of energy into mass, the interaction properties between the Sub Quantum Energies (SQEs) are transferred from photon to fermions and bosons". We have accepted that nature of gravity is quantized, but according to the behavior of photons in the gravitational field, we provide a new definition of gravitons. Then we explain the relationship between gravity and electromagnetic energy. According to the experimental observations, we generalize the Maxwell equations of electromagnetism to the gravitational field. We use the pair production and decay to show that a charged particle acts like a generator, the generator input and output are gravitons and virtual photon. The negative charged particle produces positive virtual photon and positive charged particle produces negative virtual photon. A negative and a positive virtual photon combine with each other in the vicinity of a charged particle and cause the charged particle to accelerate. Although this approach to Quantum Field Theory (QFT) is presented, it has some differences. The mechanism of negative and positive virtual photons interaction is easier and more realistic than exchange particles of QFT, and it also has no ambiguities of QFT. After all, we explain the real photon and its structure by using the virtual photons. Regarding the equivalence of mass-energy and the photon structure, structure of matter was explained. Then we will explain the relationship between speed and spontaneous symmetry breaking, when the particles linear speed is reduced, physical symmetry, one after the other is broken spontaneously.