Toroidal Lattice

The Toroidal Lattice is the pattern of repeating nodes the Harmonic Fold makes within the substrate, where recursive expansion folds back on itself: the unity convergence (n + 1)² mod n = 1 for n ≥ 2 gives natural harmonic reference points, laid out on the torus. The book gives its lattice vectors golden-ratio proportions as an ansatz, chosen rather than derived. It connects to Harmonic Fold, Toroidal Geometry and Golden Ratio Recursion Law.