Spiritual Doctrine of St. Catherine of Genoa
This great lay mystic reveals that the Gates of Heaven are actually wide open; but that souls choose not to go there unless they are perfect. If they are wicked (in mortal sin); they hurl themselves into Hell. If they die in the State of Grace; but with sins yet unexpiated; they hasten to the appropriate place in Purgatory. St. Catherine says that the sins we expiate in this life are paid for at a very small price indeed compared to what we will pay in Purgatory. A classic!