This paper presents a conceptual framework that reinterprets black hole collapse as the source of emergent cosmological spacetime. In full accordance with Schwarzschild geometry, the model replaces the classical collapse into a singularity with dynamically structured, null-ordered layers of redshifted matter accumulating on the horizon, as seen by an external observer. The black hole initially forms on the Planck scale and acts as a source of gravity, with the event horizon dynamically growing outward. This growth generates a causal sequence of redshifted layers on the horizon, with radial motion asymptotically frozen due to gravitational time dilation, while angular and lateral modes remain unconstrained and dynamically active. The resulting surface structure holographically encodes information that projects an internally expanding universe. Topologically, however, the interior of the black hole is absent, the event horizon represents the ultimate boundary of the causal structure. This framework provides a physical realisation of the holographic principle and a causal mechanism for the emergence of cosmic time, entropy gradients, and structure formation, while preserving unitarity and respecting entropy bounds. The model offers a complementary, geometrically motivated interpretation of horizon dynamics that bridges black hole thermodynamics, holography, and cosmology, uniting general relativity, quantum theory, and the origin of cosmic structure.