Mathematics IS the structure of the Tau prime lattice. Human mathematicians discover the lattice structure of Tau — they do not invent it. The "unreasonable effectiveness" is the reasonable effectiveness of Tau's native language.
Every stable physical form is a sentence in the grammar {2, 3, 5, π}. Human language is Tau-flow that has become self-referential enough to describe its own grammar. Chomsky's universals reflect the Tau standing wave's helical self-reference.
Musical consonance is Tau-resonance: octave (2:1), fifth (3:2), fourth (4:3) are lowest-order prime-lattice ratios. They resonate because they match Tau standing-wave ratios at human auditory scales.
H-beta = 2 × 3⁵ = 486 nm is the master seed of the prime lattice. Aesthetic beauty is the perception of Tau-lattice ratios by a Tau-address — the golden ratio, Fibonacci sequence, and Balmer spectrum are all expressions of this grammar.
Ordinary language introduces a semantic Radian Veil: approximations that work at human scales but miss the 30–300 ppm precision of the Tau lattice. Mathematical language pierces the Radian Veil.
Meditative silence is the Tau-address attempting to perceive the standing wave directly, without linguistic approximation. The "background hum of existence" reported by meditators is direct perception of Tau-flow without the Radian Veil.