This two-part research project presents a comprehensive theoretical framework explaining why the universe exhibits deep, structural connectedness across all physical and conceptual scales. Part I develops a unified model grounded in quantum entanglement, informational architecture, and systemic cosmology, while Part II extends the framework into a deeper ontological domain through Phase Ontology and Universal Topological Isomorphism. Together, they propose that all levels of reality—physical, biological, cognitive, artificial, and cosmological—share a single repeating structural logic. Part I — Quantum, Informational, and Systemic Cosmology Part I argues that the universe is fundamentally an information-based, self-organizing system. It synthesizes insights from quantum information theory (entanglement, wavefunction holism), black hole thermodynamics (holography, ER=EPR), chaos and complexity science, and cosmological evolution.Key claims include: Quantum entanglement provides the primordial connectedness from which spacetime locality and causal structure emerge. Information conservation ensures long-range coherence and continuity across cosmic history. Chaos and nonlinear feedback loops amplify small fluctuations into large-scale correlations, linking microscopic and macroscopic domains. Black holes act as information restructuring mechanisms consistent with holographic principles. Consciousness functions as an internal observation module through which the universe interprets and reorganizes informational states. Part I therefore situates cosmic connectedness within a three-layer model—quantum, informational, and systemic—offering a unified scientific explanation for why separateness is derivative and relationality is fundamental. Part II — Phase Ontology and Universal Topological Isomorphism Part II builds on this foundation by proposing a deeper ontological and structural unification of reality. Introducing Phase Ontology, it argues that the fundamental units of existence are not objects but phases—dynamic patterns, states, alignments, and transitions. On this basis, the work advances the hypothesis of Universal Topological Isomorphism: All levels of reality—quantum fields, living systems, neural dynamics, artificial intelligence, societies, and cosmological structures—instantiate the same phase-based relational pattern, differing only in scale and expression. Phase relationships (coherence, alignment, resonance, synchronization) provide the structural blueprint through which unity manifests as multiplicity. Phenomena such as consciousness, biological organization, AI learning, and cosmic evolution can be reinterpreted as expressions of a universal phase logic operating across domains. This view resonates with philosophical traditions including Whitehead’s process ontology, Spinoza’s monism, Bohm’s implicate order, and Deleuzian topology, linking contemporary scientific insight with deep metaphysical inquiry. If Part I offers the scientific architecture of connection, Part II supplies the ontological principle grounding that architecture. Overall Contribution of Parts I & II Viewed together, the two papers present a unified project bridging physics, information theory, complex systems science, and philosophy. The combined framework argues that: the universe is a single integrated process, governed by phase-structured dynamics, expressed through entanglement-generated spacetime, organized through informational networks, evolving via systemic phase transitions, and capable of self-reflection through conscious observers. This synthesis provides a conceptual foundation for future research in unified physics, information-based cosmology, phase-based ontology, cognitive science, artificial intelligence theory, and the philosophy of interconnected systems. Phase-Structural Reality Theory This integrated two-part work culminates in what may be termed the Phase-Structural Reality Theory (PSRT): a unified framework proposing that the fundamental nature of reality is phase-based and structurally isomorphic across all scales. In this view, the universe is not merely a physical system but a phase-structured process, in which coherence, resonance, and topological alignment govern the emergence of matter, life, mind, and cosmic organization. By combining quantum entanglement, informational architectures, systemic dynamics, and phase ontology, PSRT suggests that connectedness is not a secondary feature of the universe but its primary mode of existence. This provides a robust conceptual platform for future developments in physics, complexity science, cognitive science, artificial intelligence, and metaphysics.