This book treats of maxims and counsels which Teresa of Jesus gives to her daughters and sisters in religion, belonging to the Convents which, with the favour of Our Lord and of the glorious Virgin, Mother of God, Our Lady, she has founded according to the First Rule of Our Lady of Carmel. In particular she addresses it to the sisters of the Convent of Saint Joseph of çvila, which was the first Convent, and of which she was Prioress when she wrote it.