Description: Imagine being overwhelmed, utterly without warning, by a strange smell, a sensation of electric shock in an arm or leg, flashes of brilliant light, a dreadful fear, or a powerful sense of déjà vu. Imagine such episodes occurring repeatedly and unpredictably, causing either a temporary sensory change or unintended movements or facial expressions, or robbing the power of speech production or comprehension. Such is the world of an epilepsy patient. It is not hard to see why the ancients thought that an individual in the midst of an epileptic seizure was possessed by a supernatural spirit, for what natural force could possibly have such power?