Hon, those kinds of conferences are notorious for hard-sell evangelism and mind control. I suspect that's part of what's going on here. She probably has been convinced that this is what "god" wants, and that's probably why she is convinced you won't understand. I suspect telling her you will listen with an open heart and mind probably won't do anything either (although it might be worth a shot) because I'm guessing she doesn't have much of a reason. Something tells me that if she keeps asking you to go to church with her, there probably was some sort of a setup. I bet if you'd have walked in the door they'd have love-bombed you like crazy, trying to suck you back in. Then would come the hard-sell, and failing that the hellfire and brimstone scare tactics. This "church" sounds like a *Cult*