I present a novel, non-equilibrium thermodynamic framework that models the three-dimensional observable universe as an open, self-regulating metabolic system embedded within a higher-dimensional parent manifold (the Bulk). Rather than treating cosmic expansion as an uncollateralized internal runaway explosion, I demonstrate that the accelerating scale factor is driven by a passive, cross-dimensional wave-energy influx, which arises naturally from a steep potential gradient between the hyper-dense, highly organized Bulk and our lower-density vector universe. Within this framework, dark energy is re-defined as the volumetric pressure of this delocalized incoming field, while an independent dark matter grid acts as a spatial shock absorber to enforce a stable, non-destructive expansion rate. Crucially, I show that the universe maintains structural homeostasis via cosmologically coupled black holes, which act as system exhaust valves. Utilizing the planck force threshold (F_p = c⁴/G ≈ 1.21 × 10⁴⁴ N) and a boundary condition akin to the double-slit experiment, these singularities collapse delocalized internal space-time waves, stripping baryonic matter of its localized quantum numbers, and transforming open-string electromagnetic states into closed-loop gravitational tensors capable of exiting back into the Bulk. This model successfully accounts for the time-varying dark energy parameters recently observed by the Dark Energy Spectroscopic Instrument (DESI) where k ≈ 3.11, inherently resolves the Hubble Tension through wave-interference dynamics, and mathematically reconciles the Missing Baryon Problem as a cross-dimensional metabolic efflux.