I taught myslef how to notice dreamtriggers, and be able to lucid dream in order to conquer a re-occuring nightmare that haunted all through my childhood. Once you learn to control your dreams it can be quite fun.... they key is to notice something that re-occurs in the dreams that lets you know your dreaming.. for me it was the lamp in my room... in my dreams it never worked, so if i tried the lamp and it didnt work id know i was dreaming, from that point i was in total control.