The broadest statement of the coherence framework, extending Pentagon Physics beyond fundamental physics to consciousness, biological systems, and complex system design. Coherence is identified as the universal substrate: physical coherence (light and matter), biological coherence (cellular organisation), cognitive coherence (self-awareness). All are instances of the same self-referential pattern at different scales. The paper provides an integrated framework connecting physics, biology, and mind through the common thread of self-reference and its signature — the golden ratio.