The Wave Courtyard: Harmonic Coherence and Ground Reference in Neurocardiac-Planetary Coupling

This paper presents the “Wave Courtyard” — a theoretical field where human heart–brain rhythms couple with Earth’s resonant frequencies through shared harmonic structures. We propose that ground reference, both electrical and gravitational, acts as a tuning parameter for neurocardiac coherence, linking biological oscillations to planetary-scale standing waves. The model offers testable predictions for mapping coherence zones, controlling phase relationships via grounding states, and exploring applications in health, cognition, and environmental design.