WORK OF LOS

At the end of the First Book of Milton, Blake sums up the
work of Los by explaining how spirits are vegetated. It is
a clear explanation except much of the terminology is
peculiar to Blake. So I have consulted Damon's A Blake
Dictionary for definitions.

Milton Plate 29, (E127):

"Then Los conducts the Spirits to be Vegetated, into
Great Golgonooza, free from the four iron pillars of Satans
Throne
(Temperance, Prudence, justice, Fortitude, the four pillars
of tyranny)
That Satans Watch-Fiends touch them not before they
Vegetate.

But Enitharmon and her Daughters take the pleasant charge.
To give them to their lovely heavens till the Great
Judgment Day
Such is their lovely charge. But Rahab & Tirzah pervert
Their mild influences, therefore the Seven Eyes of God walk
round
The Three Heavens of Ulro, where Tirzah & her Sisters 
Weave the black Woof of Death upon Entuthon Benython
In the Vale of Surrey where Horeb terminates in Rephaim
The stamping feet of Zelophehads Daughters are coverd with
Human gore
Upon the treddles of the Loom, they sing to the winged
shuttle:
The River rises above his banks to wash the Woof:     
He takes it in his arms: be passes it in strength thro his
current
The veil of human miseries is woven over the Ocean
From the Atlantic to the Great South Sea, the Erythrean.

Such is the World of Los the labour of six thousand years.
Thus Nature is a Vision of the Science of the Elohim." 

      End of the First Book.
______________________________________________________________________________________________
Golgoonza - Los's city of "art and manufacture." (M24:50)
Enitharmon's looms are in the golden hall of Cathedron. Its gates
open into Eden, Beulah, Generation, and Ulro.
(Damon, Page 162-5)
Enitharmon - with her daughters, she weaves beautiful, spiritual
bodies (the web of life) for the Spectres about to be born.
(Damon, Page 124-5)
Entuthon Benython - a land of Urizen east of Galgonooza: "a dark
and unknown night, indefinite, unmeasurable, without end. Abstract
Philosophy warring in enmity against Imagination" (J5:56)
(Damon, Page 126)
Horeb - where Moses saw the burning bush, Blake associates with
rock. (Damon, Page 189)
Rephaim - "Miltonic limbo of amorphous decaying superstitions"
(Damon, Page 346)
Rahab - harlot of Babylon, symbolizes false church of this world, the
opponent of Jerusalem. She imputes sin and righteousness to
individuals. (Damon, Page 338-9)
Tirzah - daughter of Rahab; Tirzah weaves natural, physical bodies;
she represents sex; she is the mother of death; she is a temptress of
men. (Damon, Page 407)
Ulro - the material world, the world of death, the world of spectres who
are dead to Eternity. (Damon, Page 416)
Zelophehads - five independent Female Wills who restrict the senses
of man, Tirzah is the fifth. (Damon, Page 457)
Seven Eyes of God - "the path of Experience fixed for the Individual
by the Divine Mercy, so that proceeding through his errors he may
eventually reach the true God." (Damon, Page 134)
Science - "True Science is eternal and essential, but it turns bad
when it cuts loose from Humanity". "Science can assimilate its
material and communicate it, but cannot create."
(Damon, Page 359-60)
_________________________________________________________________

Los has provided a way that the Spectres not fall into non-existence, but it requires that they take on a physical body in a world of illusionary material existence under the dominance of mistaken morality and religion. Los parallels John the Baptist, he can prepare the way, but he cannot initiate the coming of the Kingdom.

The Arlington Tempera, which has been mentioned in other posts, can be viewed in the light of this passage.