Teresa of Ávila reformed the Carmelite order from within, insisting that austerity of life must always serve, never smother, the freedom of prayer
Teresa's reform insisted that hardship earns its place only by protecting time for prayer, not by proving toughness for its own sake.
Teresa of Ávila's autobiography, The Book of Her Life, written at the request of her confessors in the 1560s, recounts both her decades in a relatively relaxed Carmelite convent and her growing conviction that the order needed reform. Beginning in 1562 with the founding of St. Joseph's in Ávila, she established what became the Discalced Carmelites, a stricter observance marked by enclosure, poverty, and silence. What distinguishes her reform from a simple call for more severity is her repeatedly stated priority: austerity existed to protect unhindered time and attention for mental prayer, not as an achievement in itself, and she criticized practices that made physical hardship a point of pride disconnected from that purpose. Teresa's own visionary and contemplative experience gave her the standing to make this argument from lived authority, and the Discalced Carmelites she founded spread rapidly across Spain within her lifetime.
The Book of Her Life