Unhappily those marvellous places which are railway stations, from which one sets out for a remote destination, are tragic places also, for if in them the miracle is accomplished whereby scenes which hitherto have had no existence save in our minds are to become the scenes among which we shall be living, for that very reason we must, as we emerge from the waiting-room, abandon any thought of finding ourself once again within the familiar walls which, but a moment ago, were still enclosing us.