According to Blake's faith the coming of Jesus is the ultimate act of forgiveness for what we have become in our brokenness. It empowers us to become through a new birth what we were originally and what we are called to be again. The new birth is an alteration of consciousness. Blake had an inkling of this as early as 'The Marriage of Heaven and Hell', where he referred to it as "an improvement of sensual enjoyment" In the same plate he referred to it as a cleansing of the "doors of perception" and likened the former state to life in Plato's cave.
In the lovely "first Light" poem already quoted he used the thoroughly biblical figure of Jesus purging away "all my mire and my clay". Forgiveness is not a temporal event, but an eternal one. The Lamb of God was slain from the foundation of the world. We must forgive not once, but seventy times seven times. Blake deals with sin and forgiveness as ultimates in his notebook poem, "My Spectre around me night and day". The poem speaks primarily to the advanced student, but with crystal clarity stanza 14 bears on the primary grace:
Throughout all Eternity I forgive you, you forgive me.
As our dear Redeemer said:
This the Wine and this the Bread.
The unforgiving, accusing, egocentric, spectrous Selfhood is the stuff of Ulro, the life that is Eternal Death. Forgiveness through Self-annihilation is the stuff of that life which is life indeed. In the eternal realm Good and Evil, Virtue and Sin, all are forgiven and replaced by Truth and Error, which constitute the matter of the eternal wars of love.