The NeuroBond Method is a relational behavioural framework describing how emotional alignment shapes communication and behaviour in both dogs and humans. In dogs, NeuroBond integrates the concepts of Invisible Leash and Soul Recall to explain trust-based guidance, non-verbal attunement, and alignment-driven recall behaviour. In humans, the method outlines internal emotional architecture, including alignment, readiness, and relational coherence. By positioning behaviour as an emergent expression of internal organisation rather than obedience or intention, NeuroBond provides a unified cross-species structure for understanding relational dynamics, predictability, and behavioural stability. This publication introduces the theoretical foundations, dual-domain application, and behavioural implications of the NeuroBond Method.