When arguing with someone who holds some fantastic notion (e.g. "God only helps those who help themselves," as an answer to, "Why didn't your god answer my prayer?"), they tend to lament about how difficult it is to explain "deep spiritual truths" to the faithless skeptic. When this happens, it's best to be as empathetic as possible. Maybe it's difficult to explain because it's hard to make up sh!t on the spot, amirite?