while the movie seems far-fetched, some believe they can control their own dreams. it s a controversial technique called lucid dreaming. robert wagner, author of lucid dreaming: gateway to the inner self, says like in the movie he once planted an idea into a friend s mind through a dream. the lucid dreamer has to deal with his own thoughts, his emotional issues. reporter: in the real world, dreams are used for good. in fact, experts study them and they believe that dreams can help you conquer your fears. that s true for artist evelyn stetton. my dreams have guided me back to performance. reporter: stage fright kept her from singing in public. dream therapy changed that. stetten works with therapist lauren schneider, who taps into people s dreams to help them. whatever issue is going on is going to pop up immediately. but not only the issues, the solutions come up in the dream.