The Wave-Correlated Universe Framework (WCUF) proposes a coherence-based reinterpretation of spacetime, gravity, and quantum phenomena. In this approach, spacetime is not treated as a fundamental geometric entity, but rather as an emergent structure arising from a global coherence field Ψ\PsiΨ. Crucially, this framework does not introduce an additional substrate beneath space; instead, it interprets space itself as a dynamically structured wave medium. The spacetime metric is constructed from gradients of the coherence field, such that curvature corresponds to variations in coherence density. Within this formulation, Einstein’s equations are recovered at an effective level, with an additional stress-energy contribution arising from the field dynamics. This provides a natural reinterpretation of gravitational energy and offers a pathway toward global energy balance in cosmology. A cosmological reduction is developed under homogeneous conditions, yielding Friedmann-like equations in which accelerated expansion emerges without requiring an explicit cosmological constant. The framework also supports structure formation through perturbations in the coherence field and offers a unified interpretation of quantum behavior, where wavefunction collapse is treated as a decoherence process within the global field. The work situates itself alongside emergent gravity and information-theoretic approaches while providing a physically motivated field interpretation. Possible experimental signatures are discussed, including interferometric phase effects and deviations from standard cosmological predictions at high redshift. This paper represents an initial formulation, with further work required to constrain the model and connect it quantitatively with observational data.