Treatise on Purgatory
St Catherine of Genoa
CHAPTER III
All the pains of purgatory take their rise from sin, original or actual. God created the soul perfectly pure and free from every spot of sin, with a certain instinctive tendency to find its blessedness in Him. From this tendency it is drawn away by original sin, and still more by the addition of actual sin ; and the farther off it gets, the more wicked it becomes, because it is less in conformity with God. Things are good only so far as they participate in God.
To irrational creatures God communicates Himself, without fail, as He wills, and as He has determined ; to the rational soul more or less, according as He finds it purified from the impediment of sin ; so that, when a soul is approaching to that state of first purity and innocence which it had when created, the instinctive desire of seeking happiness in God develops itself, and goes on increasing through the fire of love, which draws it to its end with such impetuosity and vehemence, that any obstacle seems intolerable, and the more clear its vision, the more extreme its pain.
Now because the souls in purgatory are without the guilt of sin, there is nothing to stand between God and them except the punishment which keeps them back, and prevents this instinct from attaining its perfection ; and from their keenly perceiving of what moment it is to be hindered even in the least degree, and yet that justice most strictly demands a hindrance, there springs up within them a fire like that of hell. They have not the guilt of sin ; and it is this latter which constitutes the malignant will of the damned, who are excluded from sharing in the goodness of God, and therefore remain in that hopeless malignity of will by which they oppose the will of God.
