When I first read Flannery O’Connor (also 20 years ago), I had the same reaction as Melody Lyons describes here. Since that time, after learning how much evil there is (and how much has been covered up in our society and church) , suffering through my own chronic health problems and my husband’s sufferings from Marfan syndrome and his death this past October, I have a whole new appreciation for Flannery.
“Show me what is my secret sin” (Psalm 19) is the purpose I think of all of her works. Reading her stories and essays, after understanding their anagogical meaning, does lead me to make a better Confession as I realize how much sin I tend to rationalize and excuse unknowingly instead of repenting and confessing it. Father Theodore from the Norbertines wrote an excellent homily that encouraged and inspired me to pray the prayer of the psalmist. (http://220.127.116.11/our-top-secret-sin?page=2 is the link if that one does not work.)