This paper presents the formal reconstruction and interdisciplinary grounding of the TATi sequence — Tend, Align, Transcend, Integrate — as a universal grammar of generative coherence. The TATi sequence emerged through dialogical synthesis within a broader project seeking a coherence-first metaphysics applicable across developmental, symbolic, and systemic domains. Rooted in Terrence Deacon’s theory of teleodynamics, John McMurtry’s life-value onto-axiology, and contemporary developmental and regenerative sciences, TATi is proposed as an irreducible four-phase operator of transformation. It describes how living systems — biological, psychological, cultural, and metaphysical — navigate thresholds of dissonance and potential, enabling evolution through recursive coherence restoration. This paper traces the epistemic moment of discovery, defines the teleodynamic function of each phase, and validates the sequence through examples from embryogenesis, trauma healing, mythopoetic narrative, symbolic cognition, and institutional evolution. It concludes that TATi constitutes a cross-disciplinary symbolic grammar of becoming, offering a generative syntax for regenerative practice, epistemological integration, and cosmological participation.
