Siyon Jin has focused on 'light', the origin of technology visual mass media he deals with. While his previous works dealt with the light of contemplation hugged by Mother Nature and the one of civilization, 'SIGN' on this exhibition makes an attempt to give shape to human light like invisible energy. 'SIGN', which means a symbol, a constellation, etc shows the lights of nature, mankind and civilization, which repeat conflict and coexistence and form circulatory order.