I do not come here to provoke you or convert you, and indeed I am not interested in long debates on God’s existance, causality, etc.
From an atheist standpoint this is illogical, since first, an atheist does not believe in God and restricts himself to the empirical, it follows then another’s interest in myth wastes his time as well as the time of the person he feels is deceived. Secondly, an agreement can never be reached unless both can realize the same bases in commonality. As this delves with the non-substantial, the atheist by his own restriction can never come to terms than anything un-substantial exists.
Your explainion of wishing a debate here therefore is insufficient, and neither would it get approval from a real atheist. But since you are here and are not fully convinced there is no God I will continue.
All those things that needed to be revealed have been. Therefore there is no more new revelations. Anyone coming back from the dead can bring us no more news than what has already been revealed for our salvation.
Jesus warned us not to mess around with necromacy. The reason for this is there is an enemy of ours that is jealous. He is more powerful than we are and his natural domain is here as well as hell. These beings can do extraordinary things, and much beyond our comprehension. The intricate workings of the substantial body is trivial to them as they know every aspect of our being. This is why they can possess us, take on our form and force us to do physical things.
Now in demon’s dealing with God, they can get approval from God if they can show the victim made an implicit or explicit approval for demons to do what they desire with them. They approve through sin and curiosity in disobeying Christ’s command, an exact case of history repeating itself in the story of the garden of Eden. The deeper these people agree to take on evil as part of their lives, the more protective grace God will withhold. Sometime the demon’s presence is not so obvious, and things are looking quite good for the person. But this a time out for some other misfortune to come later, so he will allow him to be fattened up so to speak for the fire until he is ready.
These people who feel innocent in conjuring by any means, which includes oijia boards, are playing with fire, literally.