It is difficult to explain to your girlfriend why you did everything Rostelli said. To avoid her tricky questions it is best to stick to the story that you can't remember. This is not to say that the volunteers deliberately mislead the public. The most talented volunteers succeed in convincing themselves that everything happened without their own will. This works best for people with a good imagination.
Hypnosis is in fact a method to encourage people to imagine experiences suggested by the hypnotist.
Someone who totally succeeds in absorbing himself in this fantasy world can temporarily lose his hold on reality. It seems that I talk, too, while I am reading. I notice that only if somebody says something about it. I can imagine things easily. I teach at an elementary school and I sometimes tell the children stories that I make up on the spot.