The 16th century in Spain was a turning point for the whole world. The New World was gradually being discovered by European explorers, the Renaissance reached its peak, and it gave us three of the greatest mystics of the Christian tradition, people whose writings on the spiritual life have for centuries guided those seeking a greater union with God.
St Theresa of Avila and St John of the Cross were both Carmelites. The third was St Ignatius of Loyola, founder of the Jesuits and a person of exceptional mystical experiences.
The difference between Ignatius and the Carmelites is that Ignatius’ spirituality is transferable to ordinary, daily living.