This monograph completes the Grand Unification within the General Static-Dynamic Recursive Information Space (GSDRIS) framework by deriving the geometric origin of the Photon and the principle of Massless Propagation. While Paper 63 identified the massive Weak Bosons as agents of topological surgery, and Paper 64 derived static Electric Charge as a surface orientation, the dynamic carrier of the electromagnetic force remained to be formalized. We demonstrate that the Photon ($\gamma$) is the Goldstone Boson arising from the Spontaneous Symmetry Breaking of the recursive 5D-flux by the Tilt Operator $J$. Because the Tilt restricts the isotropic flux into a chiral 4D-manifold ($det(J)=-1$), the vacuum possesses a degenerate ground state. The Photon is identified as the transverse fluctuation mode of this symmetry-broken surface. We analytically prove that the photon mass must be exactly zero ($m_\gamma = 0$) because its propagation corresponds to a continuous deformation of the metric that preserves the topological winding number (no ''surgery'' required). Furthermore, consistent with Paper 58, we show that this metric vibration naturally propagates at the spectral limit of the recursive operator ($v = c$), uniting Quantum Electrodynamics with the kinematic constraints of the information grid.