The end of Therese's time as a postulant arrived on the January 10, 1889, with her taking of the habit. From that time she wore the 'rough homespun and brown scapular, white wimple and veil, leather belt with rosary, woollen 'stockings', rope sandals". Her father's health having temporarily stabilized he was able to attend, though twelve days after her ceremony her father suffered a stroke and was taken to a private sanatorium, the Bon Sauveur at Caen, where he remained for three years before returning to Lisieux in 1892. In this period Therese deepened the sense of her vocation; to lead a hidden life, to pray and offer her suffering for priests, to forget herself, to increase discreet acts of charity. She wrote, "I applied myself especially to practice little virtues, not having the facility to perform great ones … In her letters from this period of her novitiate, Therese returned over and over to the theme of littleness, referring to herself as a grain of sand, an image she borrowed from Pauline… 'Always littler, lighter, in order to be lifted more easily by the breeze of love'. The remainder of her life would be defined by retreat and subtraction".