I hope you will strongly urge your brother not to have anything to do with this person, or anyone else who says they have the power to make contact with the dead. The Bible clearly states that occult activities like this are not from God but from the demonic powers of darkness. The Psalmist declared, “I will have nothing to do with what is evil” (Psalm 101:4).
Why does the Bible tell us to avoid them? One reason is because they’re often fraudulent and deceptive, falsely claiming to have powers they don’t really have—all for the sake of money. But the main reason is because occult practices like this may bring us into contact with spiritual powers that are not from God, but from Satan. The Bible bluntly says, “Anyone who does these things is detestable to the Lord” (Deuteronomy 18:12).
I hope you will encourage your brother instead to find his peace and comfort in Jesus Christ. God knows the emptiness and grief your brother feels, and Christ wants to come into his life and take away those hurts. Jesus’ promise is for him, and for all who experience the heartache of losing a loved one: “Blessed are those who mourn, for they will be comforted” (Matthew 5:4).
Remember: for the Christian, death is not the end, because by His resurrection from the dead Christ conquered death and opened Heaven’s door for us. He alone can give us hope—and He will, as we open our hearts and lives to His love.