"If You Had Experienced It, You'd Believe Too" Nonsense
Mormons say that once you experience the Spirit testify to you that something is true, it is pretty hard to convince yourself that you did not feel the Spirit. I felt what I used to call the Spirit many times, I now feel forced by the evidence to have to think differently about those powerful experiences. I now believe that those experiences are produced entirely by the biological brain. When I was nine, I had an experience that I interpreted as being visited by an angel. I no longer interpret it that way. When I was 14 years old, my mother passed away. On the day of my marriage in the temple, I believed I felt her presence there. I now believe that that experience was entirely produced by my brain. Experiences are always vulnerable to reinterpretation when we adopt a new perspective. So, the argument that "if you had only experienced what I have experienced, then you'd believe" does not have any validity for me.