“When St. Monica was about to give birth to the great St. Augustine, she dedicated him by repeated acts of oblation to the Christian religion and the service of God’s glory. He testifies to this and says that “he had already tasted God’s salt within his mother’s womb.”
“The story contains a great lesson, for it tells Christian women to offer up to God’s Majesty the fruit of their wombs even before it comes into the world. At such times, God, who accepts the offerings of a humble and willing heart, is wont to inspire a mother’s affections.”
Source: St. Francis de Sales :Introduction to the Devout Life, Part 3, Chapter 38, p224, Ryan’s edition