You do not know what will happen if you take down the walls; you cannot see through to the other side, don't know whether it will bring freedom or ruin, resolution or chaos. It might be paradise or destruction. Take down the walls. Otherwise you must live closely, in fear, building barricades against the unknown, saying prayers against the darkness, speaking verse of terror and tightness. Otherwise you may never know hell, but you will not find heaven, either.