Having taken the full Silva course several years ago, I know from experience that this method can unlock unbelievable potential in one's mind. This recorded course can only be an introduction to the full experience, but it gives you enough of a clue that the listener can decide whether they might want to investigate further.Without going into detail, just let me assure you that this method was able to allow me to accomplish some amazing psychic things.. amazing enough that it was almost frightening. Studying with a trained instructor is definitely recommended!