It is difficult to say which of the roles prescribed by the metro was the main one - functional or propaganda. In any case, both the metro role played with serviceability, sometimes even incredible. The metro was always perceived and, apparently, was a certain state in the state, a city in the city, something like a powerful secret organization, not subject to universal entropy. The metro regularly worked all four years of war and as a means of transportation, and as a bomb shelter, and as a sign that life continues. The metro worked properly during the years of late perestroika, when the body of the city was launched and showered right before our eyes, when it seemed surprising that trams were still walking and some light bulbs burned. At all times, the metro worked as a clear, once and for all a well -debugged mechanism, drawing energy only from the space. Apparently, so it is. And after all, in this world, there should be at least something stable, except for faith, hope and love. There must be a foundation that you can rely on without fear. There should be such a place below which it is already impossible to drop.