My SD explained they are not exactly “sins” but “sinful tendencies.” They are the character traits that give us the basis we need to fall into certain types of sin.
Like it isn’t a sin to be an “angry person” but it is a sin to behave angrily during an “angry state.” I say that though I don’t know if Fr. Barron or my old SD would have worded it that way. But it would seem to make sense kind of like it’s not a sin to have SSA, until it’s acted upon.
I took a really interesting class on it, designed by Fr. Robert Barron, that used the mountain Purgatorio, from Dante’s writings.
The mountain has certain sins in certain categories, as they go up. Really it was fascinating.
Here’s the diagram of the mountain:
Note that the first three terraces are “perverted love,” which are directed toward actual harm of others. Pride, Envy, Anger.
The next one illustrates “deficient love,” which is: Sloth
The top three are from “excessive (or disordered) love,” Covetousness, Gluttony, and Lust.
To me, the funny thing is that ones with pride and anger (whereas pride is at the root of all the other vices) love to make public condemnation of those whose sins are at the “top” of the mountain.
MS