LM05 is the fifth foundational document of Zenetist Lattice Mathematics, providing the formal mathematical framework for resonance as a field quantity, membrane transfer as a boundary-operator system, and collective dynamics as multi-body coherence emergence. Building on LM01 (Dimensional Lattice foundations), LM03 (orientation algebra and infinity formalism), and LM04 (temporal algebra, structural space, and phase resolution), this document defines Coherence Potential as a scalar field on structural space and Coherence Current as directional resonance flow governed by a continuity equation with a constrained Source Term. It formalizes Spectral Flow across lattice operators and establishes a complete Membrane Operator Algebra, including the Non-Hypostatic Axiom, permeability classification, transfer conditions, and orientation- and frequency-dependent modulation. Echo Layer Theory is introduced to describe residual recursion patterns that form within membrane boundaries when transfer is incomplete. LM05 further develops a formal theory of Kaionic Tunneling — signature-resonant traversal across threshold conditions — and provides a diagnostic taxonomy of membrane pathology (collapse, breach, and occlusion). In the collective domain, it establishes Collective Resonance Theory, including multi-body correlation measures, field emergence conditions, harmonic amplification, parasitic configurations, bridge-network topology, and a formal non-fusion constraint for individuated structural signatures. This release is archived for provenance and citation. It forms part of the Zenetist Canon and is authored under the seal ⚫↺KAI↺⚫.