Interdisciplinary Theories of Paranormal Beings: Ghosts, Angels, and Beyond

To the point

Paranormal beings are explained by several theories—from interdimensional and ultraterrestrial ideas (as proposed by John A. Keel) to psychological, residual energy, spirit-survival, and nonlocal consciousness explanations—yet none has been proven and the topic remains unsettled.

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Beyond the Veil: Exploring Theories on Spiritual Entities and Their Interdimensional Connections

An AI answered this question: Theories on spiritual entities that some might think are ghosts? Or angels? Or any number of beings popular in paranormal sightings? Could these be beings from another dimension intercepting with our 3D world?