I heard a tape on the daf where the person quotes that how Orpah became so changed after she left is an example ...... it was from 5731 drush called a "Sakana shb'yerida" drush of a Chaim Shmuel L? Levin Levitz? I could not tell....are you aware of what the person was referring to?
It is referring to "Sichos Musar" of Harav Chaim Shmuelevitz, Rosh Yeshiva of Mir, part 1 (5731) Ma'amar 13 (page 42) "me'Igra Rama l'Bira Amikta." The Sefer is available in every Hebrew bookstore that sells Torah oriented books.