Read it through once

Five fathoms out there. Full fathom five thy father lies. At one, he said. Found drowned. High water at Dublin bar. Driving before it a loose drift of rubble, fanshoals of fishes, silly shells. A corpse rising saltwhite from the undertow, bobbing a pace a pace a porpoise landward. There he is. Hook it quick. Pull. Sunk though he be beneath the watery floor. We have him. Easy now.