The concept of elastic spacetime to describe the nature of gravitational fields is an idea strongly supported by observations such as gravitational lensing. A spacetime that is elastic for cosmological bodies is not a different spacetime for fundamental material particles, nor for light. At every scale, particles and massive bodies alike occupy the same experiential universe we observe within the same three spatial, plus time, dimensions. If spacetime is elastic on the cosmological scale, then it is elastic on all scales, including at the fundamental quantum level. A theory of quantum gravity is presented in which the gravitational and electromagnetic fields are not disparate fields in need of unifying but rather they are identical, fully integral manifestations of the same elastic spacetime source-field. By applying essentially classical wave mechanical principles to a novel superfluid quantized spacetime as an elastic and compressible matrix, the electromagnetic oscillation becomes an electromagnetic distortion, a deformation in which incumbent energy both stretches and compresses the matrix transversely, resulting in photons that describe gravity-antigravity oscillations with vortical geometry. From this energy-field architecture a mechanism for light-to-matter energy confinement naturally emerges through concentric wave interference to yield a stable concentric wave singularity as toroidal structured light locked into an intrinsic poloidal oscillation with signature spin, charge, magnetic dipole and discrete mass. The ideas developed in this theory are drawn from a series of thought experiments based on spacetime as a singular source-field and light energy as the harmonic wave oscillations of that field. These thought experiments explored the potentialities of a quantized elastic and compressible spacetime on quantum mechanical systems from which the theory subsequently derived. The concept develops geometric continuity between vortical photon and toroidal matter-wave and encompasses a physical explanation of spin, the origin of the magnetic dipole moment, the nature of charge and the meaning of mass and mass-energy equivalence, with a derivation of quantized inertial mass emerging from the curved geometry of elementary confined energy as articulated quantum gravity.