Spirit Communication at the Limits of Explanation: A Structural History of Communication Beyond Certainty is the culminating volume in Dr. Juan Carlos Rey’s Spirit Communication Trilogy, offering a rigorous examination of why spirit communication persists precisely where explanation fails. Rather than arguing for belief or dismissal, this book maps the structures that make communication possible without claims of sender, proof, or ontology. Drawing on anthropology, ritual studies, religious history, media theory, and ethics, Dr. Rey examines séances, possession rites, divination systems, technological mediation, and communal witnessing as recurring human responses to uncertainty, grief, and decision-making under constraint. This volume advances a structural approach that treats spirit communication as an event ecology: shaped by posture, space, chance mechanisms, shared attention, and ethical boundaries. It analyzes how meaning arises without guarantee, how authority consolidates or disperses, and how harm emerges when closure, containment, or restraint fail. Topics include: Communication without sender or proof Presence without metaphysical commitment Chance devices such as lots, cards, and boards Voice, silence, and delayed interpretation Technology as modern séance Trauma, grief, and the demand for witness Institutional control by church, court, and clinic Ethical responsibility without verdict Written with scholarly discipline and unapologetic clarity, this book refuses both mystical inflation and reductive skepticism. It is not a manual, a system, or a defense of belief. It is a framework for understanding why certain forms of communication recur across cultures, epochs, and technologies, even when explanation remains unavailable. Spirit Communication at the Limits of Explanation is essential reading for scholars of religion, anthropology, psychology, media studies, and ritual theory, as well as practitioners and readers seeking a serious, ethical vocabulary for engaging the unknown without coercion or false certainty. This volume does not tell you what to believe. It tells you what structure demands when belief is not enough.