Crossfield Theory: A Unification of Science and Spirituality explores a framework aimed at bridging the divide between science and spirituality. It proposes ideas such as: A Fifth Fundamental Force: The theory reinterprets the cosmological constant as an active force, the inverse of energy and matter, fostering a dynamic equilibrium in the universe. Ten-Dimensional Spacetime: Moving beyond the familiar four dimensions, the theory describes six additional dimensions with unique properties like backward time flow and negative speed, which redefine motion, time, and quantum behavior. Absorption Model: This conceptualizes the universe as a self-perpetuating system, constantly recycling energy and matter, underlining interconnectedness from cosmic scales to biological processes. Quantum Entanglement Redefined: The phenomenon is explained as particles expressing a unified identity across multiple dimensions, challenging existing notions of causality and locality. Unified Consciousness: Speculating on a collective energy field existing beyond linear time, it opens new dialogues on the intersection of science, philosophy, and spirituality. A Mathematical Framework: The theory employs a tenth-degree equation reflecting the complex interplay of these dimensions, aiming to predict phenomena beyond the capacity of current models. Through its synthesis of cosmology, quantum physics, and metaphysical ideas, the book seeks to inspire a paradigm shift toward a more holistic understanding of reality. The vision includes reconciling empirical science with the intuitive realms of spirituality, offering a unified lens for exploring existence.