In Paragraph 20 of St. Maria Faustina Kowalska’s diary: “Divine Mercy in My Soul,” the Saint writes of a vision of Purgatory that the Lord permitted her to see:
20…I saw my Guardian Angel, who ordered me to follow him. In a moment I
was in a misty place full of fire in which there was a great crowd of suffering souls. They
were praying fervently, but to no avail, for themselves; only we can come to their aid. The
flames which were burning them did not touch me at all. My Guardian Angel did not leave
me for an instant. I asked these souls what their greatest suffering was. They answered me
in one voice that their greatest torment was longing for God. I saw Our Lady visiting the
souls in Purgatory. The souls call her “The Star of the Sea.” She brings them refreshment. I
wanted to talk with them some more, but my Guardian Angel beckoned me to leave. We
went out of that prison of suffering.[I heard and interior voice] which said, My mercy does
not want this, but justice demands it. Since that time, I am in closer communion with
the suffering souls.
A “longing for God” was their greatest torment. They know Him, as they had already perceived Him when they endured their own individual Particular Judgment. And they can, according to some Catholic concepts of Purgatory, see a glimpse of Him off in their future. However, they are separated from Him by their sins, and the pain of that torments them. They long for Him, they desire Him, but cannot as yet be united to Him in the beautiful vision of Heaven. The pain burns.
Eventually the pain burns the stain of their sins away from their soul, and their longing for God purges them from any remaining attachment to their Earthly desires.
They will eventually be Home.
For more information on St. Faustina, click here:"The Stations of the Cross for Alcoholics"