This document presents the third version of the Canonical Statement of Therapeutic Education — an emerging research framework for understanding the conditions under which learning remains possible when educational engagement becomes neurologically inaccessible under stress, overload, or fluctuating cognitive capacity. The framework proposes four structural variables — enterability, entry cost, capacity, and continuity — and a founding ethical boundary: education must not demand what a nervous system cannot give. This statement is published as a working document intended for academic examination, critique, and interdisciplinary dialogue.