Chapter 9 — Part I: The Creed — Article VII: From Thence He Shall Come to Judge the Living and the Dead
Section 23. The next words, into everlasting fire, express another sort of punishment, which is called by theologians the pain of sense, because, like lashes, stripes or other more severe chastisements, among which fire, no doubt, produces the most intense pain, it is felt through the organs of sense. When, moreover, we reflect that this torment is to be eternal, we can see at once that the punishment of the damned includes every kind of suffering.