The idea of purification in not new in the Church, nor is communion with God in eternity, or the Beatific Vision. This is what I referred to with Thomas. We are separated from God in this, well, existential reality which in itself is eviction from paradise. Heaven, communion with God is a perfect state of Grace. This is what is considered the Beatific Vision. Vision isn’t interpreted as a complete knowledge of Gods essence.
Also just to touch on purgatory. Its often suggested the mystics and the Church at some later point in history developed a fictitious doctrine with imaginary ideas of fire and suffering etc. This I also false. These teachings were discussed in Alexandria and Antioch and long before the first council.
Here’s another aspect of Origen’s Fundamental Doctrines. You have to remember he was “teaching” and presenting different philosophical thoughts which indeed were contemplated in the schools and pagan culture of the day.
"Now let us see what is meant by the threatening with eternal fire. 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 fire and in the flame which you have kindled for yourselves”
It seems to indicate by these words that every sinner kindles for himself the flame of his own fire and is not plunged into some fire which is kindled beforehand by someone else who already existed before him. The food and fuel of the fire are our sins, which are called wood and hay and stubble by the Apostle Paul.
And I think …when the soul is gathered together within itself a multitude of evil deeds and an abundance of sins, at a appropriate time the whole collection of evils boils up for punishment and is set on fire for penalty. When the mind itself. or conscience. by Divine power receives into the memory all those things which, when it is sinning, it impressed upon itself as certain signs and forms, it will see exposed before its eyes a kind of history of each of its own enormities, the deeds which it foully and shamefully performed and even impiously committed.
Then also will the conscience itself be harassed and pierced by its own goads, becoming witness and accuser against itself…From this, then. it is understood that certain tortures are produced around the substance of the soul by the harmful influences of the sins themselves.
It is my judgment, however, that it is possible to understand that their is also another species of punishment. Thus when the soul shall have been found to be outside the order and structure of harmony in which, for the sake its well being and use-full behavior, it was created by God, and does not harmonize with itself in the structure of its rational movements, then it must be supposed that it will bear the agonizing penalty of its own dissension, and will feel the punishment of its own inconsistency and disorder. And…when the dissolution and tearing asunder of the soul shall have been accomplished by means of the application of fire, no doubt it will afterwards be solidified into a firmer structure and into a restoration of itself." Origen 220-230 The Fundamental Doctrines