Under

I I am the undertow Washing tides of power Battering the pillars Under your things of high law. II I am a sleepless Slowfaring eater, Maker of rust and rot In your bastioned fastenings, Caissons deep. III I am the Law Older than you And your builders proud. I am deaf In all days Whether you Say "Yes" or "No". I am the crumbler: To-morrow.