The Killers’ marvellous song Human has a line: ‘sometimes I get nervous when I see an open door.’ It’s a magnificent truth about the human condition. We do not know what lies behind the door. Is it opportunity or disaster? Freedom or enslavement? Leaving behind the familiar is always scary, like the baby in the womb. Yet, had we not gone through that open door our home in the womb would have killed us. Beyond the door lies a world unknown. No wonder we can get nervous. It’s a powerful image! A great truth about the human condition.