I have a friend who lost her mom rather rapidly to Lewy Body Syndrome. (It’s said that’s what Robin Williams was diagnosed with, which made him commit suicide.)
There isn’t a week goes by that she doesn’t lament her mom, and it’s almost sounds kinda...well, sick...because she doesn’t seem to be able to allow the grief to run its course and move on.
Something like this would probably be a very bad thing for her.
As far as the Bible saying anything about it, the best I could find is Deuteronomy 18:11-12, which prohibited speaking to the dead through necromancers. I don’t know if this would qualify, but it sounds really similar.
I would personally give this a hard pass.
^this^
Just imagine how they could make them “evolve” and try to get you to “evolve.” Seems like a lot of manipulation opportunities.