Ouija Boards - Are They Harmful?

Most Ouija believers feel that the paranormal or supernatural is responsible for Ouija's action. However, it may be parsimoniously explained by unconscious movements of those controlling the pointer, a psychophysiological phenomenon known as the ideomotor effect.

But even though the scientific community has repeatedly debunked the Ouija board, it should be noted that the Bible plainly shows that demons do exist and even though today they are evidently restrained from materializing, they still have great power and influence over the minds and lives of people, even having the ability to enter into and possess humans and animals. The Bible also shows that they use inanimate things such as houses and charms. (Mt. 12:43-45) This can, of course include Ouija boards.
So is there any harm in using using Ouija boards? True Christians would look to see what the Bible may indicate on the matter. 1 Cor. 10:21 plainly states:

"You cannot drink the cup of the Lord and the cup of demons. You cannot partake of the table of the Lord and the table of demons." RSV

God commanded his ancient people, the Israelites, to avoid all occult practices. "Everybody doing these things is something detestable to Jehovah," warns Deuteronomy 18:10-12. Christians were likewise warned that "those practicing spiritism" would meet destruction at God's hand. (Revelation 21:8)

So all who truly love God will stay away from books, movies, computer games and everything that is rooted in the occult or that promote occult practices and beliefs.

Even if one may dismiss the idea that demons are the source behind Ouija boards, the general association is that the paranormal or supernatural is responsible for Ouija's action. So even though consciences vary in sensitivity, depending on one’s religious background and spiritual maturity, the important thing is that one maintains a clean conscience before God and does not offend the consciences of others, including family members. “We shall all stand before the judgment seat of God,” says Romans 14:10, 12.

Also see:

Who Is Really Behind the Occult? (g 2/11 pp. 4-6; Watchtower Online Library)

Dabbling in the Occult—What's the Harm? (g02 1/22 pp. 25-27; Watchtower Online Library)

Spiritism - Links to Information (Search For Bible Truths)