After Petrona grew up, her mother began to study the Bible, and this gave her the courage to inculcate Bible - based values in Petrona’s younger sisters.
Kui Petrona oli suureks sirgunud, hakkas ta ema Piiblit uurima, misläbi ta sai julgust õpetada Petrona noorematele õdedele piiblilisi väärtushinnanguid.