Not displaying desirable things prevents confusion of the heart.
"Young lady, you are not wearing that to the dance tonight!-
Susan's shoulder's dropped. "Oh, Dad! There's nothing wrong with this dress.-
"You can see your knees! It's blasphemous!-
"But this is what kids wear today,"Susan protested.
"And your elbows are showing! Good Lord, what would my parishioners think if they saw you?-
"They would probably think I'm going to a high school dance.-
"Well, you're not. Those dances are for heathens away. Now go take that off, young lady.-
Susan turned around and ran up to her room, crying.