Always, it seems, there is the “enemy” beyond the walls, which may be of our own making, who wants to sneak in and take over our city, appropriating as his or her own the property and goods and people within. And those of us within know and fear this threat to our lives and, in turn, wall ourselves in for protection, even though the “enemy” may already be inside our walls, may in fact reside within our own walled-in hearts.