One night the young Tétreault had a very significant dream. She was kneeling by her bed when all at once, she saw a wheat field. The heads of the wheat each changed to heads of children from different parts of the world. At the age of 13, she begin to feel a calling to the religious life as part of this call to serve the needy of the earth. At the age of 15, she made the vow of perpetual chastity.