Private Revelation on Purgatory:
St. Catherine of Genoa: “No tongue can tell nor explain, no mind understand, the grievousness of purgatory. But I, though I see that there is in purgatory as much pain as in hell, yet see the soul which has the least stain of imperfection accepting purgatory, as I have said, as though it were a mercy, and holding its pains of no account as compared with the least stain which hinders a soul in its love.
“I seem to see that the pain which souls in purgatory endure because of whatever in them displeases God, that is what they have willfully done against his so great goodness, is greater than any other pain they feel in purgatory. And this is because, being in grace, they see the truth and the grievousness of the hindrance which stays them from drawing near to God.”
St. Catherine of Genoa continues: Here, “rust which is sin, covers souls, and is burnt away by fire, the more it is consumed, the more the soul responds to God. As the rust lessens and the soul is opened to the divine rays, happiness grows.”