The Planck mass defines a fundamental scale where quantum gravitational effects become significant. By re-expressing the Planck mass equation, we derive a relation involving fundamental constants that connects gravitational and electromagnetic quantities. This relation suggests that gravitons, as quanta of spacetime with spin-2, can be understood as elementary quantum vortices formed by two photons with spin-1 moving within the light cones of Lorentzian spacetime. Incorporating the concept of spacetime torsion, we analyze this connection within the framework of quantum field theory and quantum geometry, providing insights into the quantum structure of spacetime. Furthermore, we explore how processes such as cavitation, fission of spacetime, or polarization can lead to the formation of particle-antiparticle pairs, such as proton-positron pairs, in addition to gamma rays. We formulate the concept of an electromagnetic molecule of a quantum of spacetime, denoted as gamma2G, and discuss its implications for the unification of gravity and light.

New tracks tagged #Spacetime;