qHIGT: Dimensional Projections and Ontological Foundations for Holographic Information Gravitation Theory

We present the Quantum Holographic Information Gravitation Theory (qHIGT), an ontological extension to HIGT, addressing the fundamental question: "Why is there something rather than nothing?" By formalizing the Buddhist concept of Dharmadhātu as infinite-dimensional Hilbert space and recognizing complex numbers as the mathematical gateway to potentiality, we demonstrate that the apparent "nothingness" (0) and infinity (∞) are mathematically identical. This onto-theory resolves the substrate paradox through dual-aspect monism, wherein organization and geometry constitute inseparable perspectives on fundamental reality. We derive the hierarchical structure L0-L∞, establish photons as manifestations of pure information, propose mass emergence from organizational density Φ, and generate testable predictions including correlations between galactic morphological complexity and dark matter distribution. The framework unifies mathematical rigor (Hilbert space theory), physical mechanisms (HIGT), consciousness science (EIIT), and phenomenological insights across cultures, providing the first rigorous onto-theory: an explanation not merely of how the universe functions, but also why existence occurs rather than non-existence.