But I strongly believe, if the concentration/visualization skills are developed very strongly and if you realize experiencially that your imagination can recreate reality itself and that therre is no difference, then it is possible to recreate any fantasy experience. The problem might be firstly I have not developed the required skill in visualization/concentration and secondly somewhere inside me I believe imagination is not real.
Though all my fantasy and creativity is inside my head, the external situation(physical/emotional influences) seems to play a huge role in my ability to recreate the experience/pulling it out of me. I dream much much stronger when the external situation guides me in that direction. Its like hypnosis, to recover a certain class or memory you need to be in the right room inside your mind.