Like swords of azure fire or golden spears
  With tyrant-quelling myrtle overtwined,
  Embleming heaven and earth united now,
  Vast beams like spokes of some invisible wheel
  Which whirl as the orb whirls, swifter than thought,
  Filling the abyss with sun-like lightnings,
  And perpendicular now, and now transverse,
  Pierce the dark soil, and as they pierce and pass
  Make bare the secrets of the earth's deep heart;
  Infinite mine of adamant and gold,
  Valueless stones, and unimagined gems,
  And caverns on crystalline columns poised
  With vegetable silver overspread;
  Wells of unfathomed fire, and water-springs
  Whence the great sea even as a child is fed,
  Whose vapors clothe earth's monarch mountain-tops
  With kingly, ermine snow. The beams flash on
  And make appear the melancholy ruins
  Of cancelled cycles; anchors, beaks of ships;
  Planks turned to marble; quivers, helms, and spears,
  And gorgon-headed targes, and the wheels
  Of scythèd chariots, and the emblazonry
  Of trophies, standards, and armorial beasts,
  Round which death laughed, sepulchred emblems