In these works, he begins as a prophet in Africa that describes how Urizen gave laws to the people that bound the minds of mankind.
[11] In the early works, however, the binary system is possibly similar to the imaginative and reason sides that Blake divided his own mind and a struggle between the two.
[12] In Jerusalem (1804–1820), it is said that Los was the progenitor of Adam, Noah, Abraham, Moses, and the other Biblical spiritual leaders.
[15] The work also describes the Four Zoas that are four parts that were united in Eternity but exist in a state similar to a giant after their fall.
[18] In Vala, or the Four Zoas, Los witnesses a vision of the Lamb of God being sacrificed to reveal his spiritual side while Urizen and the Synagogue of Satan work against Christ and are the ones who condemn him to death.
After the Synagogue of Satan promotes Deism, Los seizes the sun and the moon and breaks apart the heavens.
The poem ends with Urthona, Los's unfallen state rising up and shepherding in science and removing the dark religions.
[19] 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.
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.