This is Apple's famous "1984" ad. It introduced the new Macintosh computer. The lighting illuminates a good versus evil scenario by focusing its wavelengths on the athlete, who represents "good," and "Big Brother," who represents "bad." At the end, the light makes me feel vindicated that good has triumphed over evil. When the athlete floats her spear into the screen with Big Brother's face, the image explodes into an apocalyptically bright beam of light that vanquishes the evil leader.