Sword Blades and Poppy Seed/Storm-Racked

How should I sing when buffeting salt waves And stung with bitter surges, in whose might I toss, a cockleshell? The dreadful night Marshals its undefeated dark and raves In brutal madness, reeling over graves Of vanquished men, long-sunken out of sight, Sent wailing down to glut the ghoulish sprite Who haunts foul seaweed forests and their caves. No parting cloud reveals a watery star, My cries are washed away upon the wind, My cramped and blistering hands can find no spar, My eyes with hope o'erstrained, are growing blind. But painted on the sky great visions burn, My voice, oblation from a shattered urn!