Not to derail @Sunstone's characteristically brilliant thread (that OP was positively novelistic and a gripping read!) but I was very struck by how close your understanding of hell is to that of the church father Origen of Alexandria (c. 184 – c. 253) writing in his De Principiis (Book II).
Origen explained in his exegesis of the Bible, as you do so well in the above, that hell is a psycho-spiritual state of ignorance and its attendant consequences upon the soul, rather than a judgement imposed externally by God involving literal hellfire:
CHURCH FATHERS: De Principiis, Book II (Origen)
4. We find in the prophet Isaiah, that the fire with which each one is punished is described as his own; for he says, Walk in the light of your own fire, and in the flame which you have kindled. By these words it seems to be indicated that every sinner kindles for himself the flame of his own fire, and is not plunged into some fire which has been already kindled by another, or was in existence before himself. Of this fire the fuel and food are our sins, which are called by the Apostle Paul wood, and hay, and stubble.
And I think that, as abundance of food, and provisions of a contrary kind and amount, breed fevers in the body, and fevers, too, of different sorts and duration, according to the proportion in which the collected poison supplies material and fuel for disease (the quality of this material, gathered together from different poisons, proving the causes either of a more acute or more lingering disease); so, when the soul has gathered together a multitude of evil works, and an abundance of sins against itself, at a suitable time all that assembly of evils boils up to punishment, and is set on fire to chastisements; when the mind itself, or conscience, receiving by divine power into the memory all those things of which it had stamped on itself certain signs and forms at the moment of sinning, will see a kind of history, as it were, of all the foul, and shameful, and unholy deeds which it has done, exposed before its eyes: then is the conscience itself harassed, and, pierced by its own goads, becomes an accuser and a witness against itself.
And this, I think, was the opinion of the Apostle Paul himself, when he said, Their thoughts mutually accusing or excusing them in the day when God will judge the secrets of men by Jesus Christ, according to my Gospel. From which it is understood that around the substance of the soul certain tortures are produced by the hurtful affections of sins themselves.
8. But the outer darkness, in my judgment, is to be understood not so much of some dark atmosphere without any light, as of those persons who, being plunged in the darkness of profound ignorance, have been placed beyond the reach of any light of the understanding...
This ancient Alexandrian Christian understanding of the metaphorical nature of hellfire and the 'outer darkness' as a state of being, characterised by ignorance and the pain of conscience wrestling with one's mistakes in life, was complemented by the near-contemporary Eastern Christian belief expressed by the Syriac Church Father Saint Isaac the Syrian (a 7th century father, venerated as a saint in both the Catholic & Eastern Christian churches) that heaven and hell are both postmortem encounters with the Love of God, albeit experienced differently as a result of the different conditions of souls:
‘Those who are tormented in hell are tormented by the invasion of love. What is there more bitter and more violent than the pains of love? Those who feel they have sinned against love bear in themselves a damnation much heavier than the most dreaded punishments. The suffering with which sinning against love afflicts the heart is more keenly felt than any other torment. It is absurd to suppose that sinners in hell are deprived of God’s love. Love.. is offered impartially. But by its very power it acts in two ways. It torments sinners, as happens here on earth when we are tormented by a friend to whom we have been unfaithful. And it gives joy to those who have been faithful. That is what the torment of hell is in my opinion – remorse.’
[St. Isaac of Nineveh, ‘Ascetic Treatises’, p 326]
This was echoed by a number of the medieval Catholic mystics:
"Even though the eagle, king of birds, can with his powerful sight gaze steadfastly upon the brightness of the sun; yet do the weaker eyes of the bat fail and falter in the same"After the Second Vatican Council, the Catholic Church has reaffirmed the doctrinal primacy of this ancient Origenist understanding of hell as a state of being rather than a place of punishment:
(Blessed John of Ruysbroeck (The Twelve Beguines, XII), 1363)
Heaven, Hell and Purgatory
Pope John Paul II pointed out that the essential characteristic of heaven, hell or purgatory is that they are states of being of a spirit or human soul, rather than places, as commonly perceived and represented in human language. This language of place is, according to the Pope, inadequate to describe the realities involved, since it is tied to the temporal order in which this world and we exist. In this he is applying the philosophical categories used by the Church in her theology and saying what St. Thomas Aquinas said long before him...
At the General Audience of Wednesday, 28 July 1999, the Holy Father reflected on hell as the definitive rejection of God. In his catechesis, the Pope said that care should be taken to interpret correctly the images of hell in Sacred Scripture:
"The images of hell that Sacred Scripture presents to us must be correctly interpreted. They show the complete frustration and emptiness of life without God. Rather than a place, hell indicates the state of those who freely and definitively separate themselves from God, the source of all life and joy. This is how the Catechism of the Catholic Church summarizes the truths of faith on this subject (n. 1033)."
28 July 1999 | John Paul II
It is precisely this tragic situation that Christian doctrine explains when it speaks of eternal damnation or hell. It is not a punishment imposed externally by God but a development of premises already set by people in this life....
“Eternal damnation”, therefore, is not attributed to God's initiative because in his merciful love he can only desire the salvation of the beings he created. In reality, it is the creature who closes himself to his love.
You are always so thorough.