"To the person who believes in the God of the Bible, demonic worship is an evil, paganistic practice that chooses to oppose God. Sometimes God is simply ignored; many times he is mocked by patterns of ritual and incantation; other times, God is directly blasphemed. The practices and "games" that are part of demonic worship are truly dangerous, as the Warrens story demonstrates." -pg. xii.

"Psychologically, oppression by human spirits can result in unshakable depression, unpleasant habits like drinking or insomnia, even impulses toward suicide. Physical effects can range from lingering illnesses to jabs of acute pain that have no medical origin in the body." - pg. 22.

"A ghost is essentially a passive entity with limited powers and abilities. Usually, it will manifest at random, attempts to communicate, and then dissipate from view. It works out to a cycle" manifestation, communication, dissipation..." - pg. 35.

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