On the Car of Dreams "look" with your eyes closed: the pulsating light stimulates the optical nerve and alters the electrical oscillations of the brain. The observer "sees" in front of closed eyelids combination of colors with increasing brightness.
Colors swirling, take on new forms and symbols as long as the observer feel surrounded by the color composition. It is believed that observation of rotation of the Machine of Dreams allows you to go into the hypnotic state.
http://www.mindmachine.ru/articles/dreamachine.htm