I would say you think he had a vision, but Quran and Hadith say he had a trip to Jannah and Jahennem (SP?). This kind of difference in thought of possibility stalls many discussions in interfaith. If you don't believe in an actual God, then I doubt you will understand the idea of a actual place for our afterlife, much less that a man chosen by The God as his prophet would/could visit it. is it not possible these stories are true and they weren't accepted based on later churches disputing Mouhammed's (PBUH) prophethood? or that they were simply unable to understand an act outside of nature. What makes them inaccurate? Would you always say lack of evidence makes something false? If a murderer actually murdered someone but the evidence wasn't sufficient is it not possible that he committed the act? excuse me if I misunderstand your meaning of Quite, but are you saying that because he didn't confirm that which the Quran says is false that it casts doubt on Mouhammed (PBUH). I can understand an argument from a Christian perspective saying that they think that might be the reason the stories of his travels to heaven are false, but not the way I just mentioned.