In chapter 31 of her autobiography, the 16th- century Carmelite St. Teresa of Avila, one of four female doctors of the church, including her spiritual daughter, St. Thérèse of Lisieux, urges us toward frequent use of one particular, very common and (usually) widely available sacramental. During a recent holiday in Italy that included numerous visits to churches throughout the mainland and Sicily, I couldn’t help but think of the great reformer’s testimony…