On 27 August, one day before the feast of her son St Augustine, the Catholic Church honours St Monica, whose holy example and fervent intercession led to one of the most dramatic conversions in Church history.

Monica was born into a Catholic family in 332, in the North African city of Tagaste, in present-day Algeria. She was raised by a maidservant who taught her the virtues of obedience and temperance. While still relatively young, she married Patricius, a Roman civil servant with a bad temper and a disdain for his wife’s religion.

Patricius’s wife dealt patiently with his distressing behaviour, which included infidelity to their marriage vows. But she experienced a greater grief when he would not allow their three children – Augustine, Nagivius, and Perpetua – to receive Baptism. When Augustine, the eldest, became sick and was in danger of death, Patricius gave consent for his Baptism but withdrew it when he recovered.

Monica’s long-suffering patience and prayers eventually helped Patricius to see the error of his ways, and he was baptised into the Church one year before his death in 371. Monica’s eldest son, however, embraced a way of life that brought her further grief, as he fathered a child out of wedlock in 372. One year later, he began to practise the religion of Manicheism.

In her distress and grief, Monica initially shunned her eldest son. However, she experienced a mysterious dream that strengthened her hope for Augustine’s soul, in which a messenger assured her: ‘Your son is with you.’ After this experience, which took place around 377, she allowed him back into her home and continued to beg God for his conversion.

But this would not take place for another nine years. In the meantime, Monica sought the advice of local clergy, wondering what they might do to persuade her son away from the Manichean heresy. One bishop, who had once belonged to that sect himself, assured Monica that it was ‘impossible that the son of such tears should perish’.

These tears and prayers intensified when Augustine, at age 29, abandoned Monica without warning as she passed the night praying in a chapel. Without saying goodbye to his mother, Augustine boarded a ship bound for Rome. Yet even this painful event would serve God’s greater purpose, as Augustine left to become a teacher in the place where he was destined to become a Catholic.

Under the influence of the Bishop of Milan, St Ambrose, Augustine renounced the teaching of the Manichees around 384. Monica followed her son to Milan, and drew encouragement from her son’s growing interest in the saintly bishop’s preaching. After three years of struggle against his own desires and perplexities, Augustine succumbed to God’s grace and was baptised in 387.

Shortly before her death, Monica shared a profound mystical experience of God with Augustine, who chronicled the event in his Confessions. Finally, she told him: ‘Son, for myself I have no longer any pleasure in anything in this life. Now that my hopes in this world are satisfied, I do not know what more I want here or why I am here.’

‘The only thing I ask of you both,’ she told Augustine and his brother Nagivius, ‘is that you make remembrance of me at the altar of the Lord wherever you are.’ St Monica died at age 56, in the year 387. In modern times, she has become the inspiration for the St Monica Sodality, which encourages prayer and penance among Catholics whose children have left the faith.