I'm surprised that as an Existentialist you place so much faith in the Bible. My belief in those approaches is based upon my personal experience, not some external authority. I also 'follow' Jesus, albeit in a way that some would consider unorthodox.

I didn't mention the Ouija board in my response, and I certainly wouldn't recommend using that. It has nothing to do with what I was talking about. I think you are confusing two separate areas.