Teresa of Avila Journey to the 16th century to discover the fiery passion of Saint Teresa of Avila, one of Christianity's most inspiring saints. "The important thing is not to think much, but to love much, and so to do whatever best awakens us to love." ―St. A tireless reformer and the mentor of Saint John of the Cross, Teresa's greatest legacy is her revelation of ecstatic love for God―a love so powerful that it pierces the heart like a burning sword. Through illness, hardship, and persecution by the Inquisition, this courageous mystic lit the way with her unquenchable spirit to an "interior castle," a place of unimaginable beauty and light where no darkness can touch us.