I've heard stories about people who dreamed they could do something, woke up and were still able to do it. I used to love playing volleyball, and dreamed about it. I swear I improved because of it - it's as if I were practicing in my sleep. People also have been known to do things when hypnotized they can't do when in a normal state of conciousness. I think the ability is there all the time, but there's too much interference. We doubt ourselves, we think about paying the bills and what somebody said to us. The magic happens when we can focus in a way that tunes out all self doubt and distractions. Sometimes that happens in dreams. Too bad we can't put ourselves in that state when awake.