We can't tell you the origin of the experience. But we can tell you the brain does appear to be built to have these [mystical] experiences. There are examples of people reaching similar states, spontaneously. But for the most part, it takes work. Meditation and these powerful prayer experiences require dedication and practice. But people have figured out how to do this, and the question is, 'What is the source of that experience?' The answer is, 'We don't know.' Science doesn't really have an answer for you.
You didn't succeed. Well, what of that? There's nothing to prove, you know, and the revolution's not a question of virtue but of effectiveness. There is no heaven. There's work to be done, that's all. And you must do what you're cut out for; all the better if it comes easy to you. The best work is not the work that takes the most sacrifice. It's the work in which you can best succeed.