The basis of human perception is vision; it is the perception of light. Ideas of light are at the core of human cultures. Light is the source of life, information, the sun is at the center of our world. The principles of time measurement are based on the movement of heavenly bodies. Time inevitably moves forward, life in its stream is inconstant and often doomed to fade away. When time stops, the movement and light also stop. Where time stood still, there would be nothing but darkness. So, imagine that everything has stopped. So far, your vision retains the afterimage of light — bright colored spots: as if, after looking directly at the sun, you close your eyes. But they fade away too, and complete darkness sets in, you get lost in it. The world that once surrounded you ceases to exist in its usual forms. Once in this darkness, you find yourself like a child in the face of the unknown, and at the same time in the face of yourself. You experience coldness and fear, loneliness, and the only thing you wish for is the return of light, variety, flashes and fades, because they are the life.