"Thor (The Powerhead)" is about the Norse God Thor (as the name suggests), destroying the evil of the world and the Giants (enemies of the Gods) as well. The song often brings about the Ragnarök, with "live to fight on that final day" stated many times. The Norse people believed that at the end of the world the Gods and the Giants would battle for control. It is foreseen that the Gods would lose, and many of their deaths have been foretold before the battle. Regardless, the Gods still will fight on the final day for the right to control Earth. This song has been covered by symphonic metal band Therion on the album Crowning of Atlantis.