You're right about that.
Before my husband and I met, he dated a girl who became interested in the occult. She underwent a complete personality change; in fact, I would say she lost her mind. My husband found out after it was over that she was bringing a Ouija board into his home and using it when he wasn't there. My husband, who accepted Christ as a teenager during an altar call, wasn't affected.
This girl ended up trying to kill herself by cutting her wrists. I guess you could say she tried to do the same to him, by slamming him in the head with a pan while he was taking a nap.
Let me repeat I’m not overly religious, but I don’t want any spirits in my living space and the Ouiga Board is nothing but a communication device to spirits I don’t want around.