One day in 1987 psychologist Francine Shapiro was walking through a park, preoccupied with some painful memories, when she noticed that rapid eye movements produced a dramatic relief from her distress. How could a major treatment modality grow from such a brief experience? How is it possible that such a simple process had not been noted before? Initially skeptical about her observation she subjected her method to years of experimentation and research, gradually building it into a standardized procedure that could be taught and tested in controlled studies.