The poem describes how the poet's protest is no longer expressed through physical actions like throwing bricks or marching in the streets, as their arm is now immobilized and they can no longer walk the streets. Their protest is now expressed through the aftermath of violence - in the blood on the wall from graffiti, the sweat on their angered forehead, the tear gas canisters, and the wounds from truncheons and bullets tearing their flesh. The poet's message is that for justice and peace to prevail, their protest through this violence must now touch and impact humanity.