I assume you’ve read the book then. Tell me, what Council or ex cathedra statement does the author reference to support this statement?
The book is published with the approval of HIS EMINENCE THE CARDINAL PATRIARCH OF LISBON
Cardinal’s Palace, Lisbon March 4, 1936
We approve and recommend with all our heart the beautiful little book Read Me or Rue It …It is our earnest desire that every Catholic should read this little book and spread it about as widely as possible.
From the Book:
"WHAT IS PURGATORY?
It is a prison of fire in which nearly all [saved] souls are plunged after death and in which they suffer the intensest pain.
Here is what the great Doctors of the Church tell us of Purgatory:
So grievous is their suffering that one minute in this awful fire seems like a century.
St. Thomas Aquinas, the Prince of Theologians, says that the fire of Purgatory is equal in intensity to the fire of Hell, and that the slightest contact with it is more dreadful than all the possible sufferings of this Earth!
St. Augustine, the greatest of the Holy Doctors, teaches that to be purified of their faults previous to being admitted to Heaven, souls after death are subjected to a fire more penetrating, more dreadful than anything we can see, or feel, or conceive in this life
"Though this fire is destined to cleanse and purify the soul, " adds the Holy Doctor, "still it is more acute than anything we could possibly endure on Earth. "
St. Cyril of Alexandria does not hesitate to say that "it would be preferable to suffer all the possible torments of Earth until the Judgment day than to pass one day in Purgatory. "
Another great Saint says: "Our fire, in comparison with the fire of Purgatory, is as a refreshing breeze. "
The other holy writers speak in identical terms of this awful fire."
The book is on the EWTN Catholic website.