the sun and the moon and breaks apart the heavens. The destruction of the world leads to eternity and the second judgment unfolds. The poem ends with Urthona, Los's unfallen state rising up and shepherding in science and removing the dark religions. The final version of Jerusalem, completed by 1820, was a Gospel about the imagination as God's presence within humanity, and the messiah figure of the work is Los. Los's purpose was to create his own system in order to be free of any other system, and this system would be based on creation instead of reason. The purpose of the work is to describe Los's triumph and the new apocalypse in which the Lamb of God comes to England to rule. In later literature In Ray Nelson's Science Fiction novel "Blake's Progress", based on the assumption that the poet William Blake and his wife Kate were time travelers, it is assumed that in fact Los was the poet Milton, a fellow time traveler. Notes References Bentley, G. E. (Jr). The Stranger From Paradise. New Haven: Yale University Press, 2003. Damon, S. Foster. A Blake Dictionary. Hanover: University Press of New England, 1988. Frye, Northrop. Fearful Symmetry. Princeton: Princeton University Press, 1990. Mee, Jon. Dangerous Enthusiasm. Oxford: Clarendon, 2002. William Blake's mythology Fictional prophets