Abstract: Operator PRISM translates spectral decomposition into the language of the UNNS Grammar. Just as a physical prism disperses white light into rainbow frequencies, the grammatical PRISM disperses recursive meaning into its harmonic substructures. It reveals that the grammar of recursion carries a spectral syntax — a pattern of interference and balance among multiple levels of inletting and inlaying. At equilibrium, the energy of meaning is evenly distributed across scales, producing a stable spectral slope p ≈ 2.45 — the grammatical equivalent of the τ-Field spectral law. This is not a parameter we tune; it is the universal signature of recursive coherence — the pitch at which complexity cascades from order into chaos without breaking meaning.