Common images used in socialist realism were flowers, sunlight, the body, youth, flight, industry, and new technology. These poetic images were used to show the utopianism of communism and the Soviet state. Art became more than an aesthetic pleasure; instead it served a very specific function. Soviet ideals placed functionality and work above all else; therefore, for art to be admired, it must serve a purpose. Georgi Plekhanov, a Marxist theoretician, states that art is useful if it serves society: "There can be no doubt that art acquired a social significance only in so far as it depicts, evokes, or conveys "actions, emotions and events that are of significance to society"."