Saint Therese shows the path of her growth as a religious and a deep spiritual writer in these letters . The reader learns much about all of Therese's correspondents and gains familiarity with the development of her thought and message . The letters invite us to have a peep into the spiritual realm she nurtured and longed for . They clearly manifest how " Humane " was Therese , in spite of the very high ideals she proposed for herself as soon as he opted for Jesus wholeheartedly . The free flow of ideas , sincere exposition of her deep convictions , the experiential outbreak of her spiritual journeys , the spontaneous and candid advices she gives to each person according to his / her personal requirement expose to the reader the richness of her personality , depth of her convictions and the tenacity with which she emulated them . This edition contains also the results of recent fascinating research that unveils the setting in which she wrote .