The body of research on nightmares has suggested such experiences test the fortitude of a subject’s mind. If the mind is infirm, nightmares can take hold with greater impact and can even extend beyond the realm of dreams.
Dr. Patrick McNamara, a neurologist and psychiatrist at Boston University School of Medicine, looks at nightmares in a modern clinical context that takes into account the history of dream phenomena from several different cultures. His research even connects them in the context of what have been termed “malevolent spirits.”
Spirit Possession
Some people who frequently experience nightmares, today and throughout history, have shown symptoms of mental illness in waking life. They have even shown what some regard as spirit possession….