In her childhood, she read the autobiographical account that Saint Thérèse of Lisieux had written and the experience had a profound effect on her pious and innocent character while also coming to the realization that she wanted to live for God alone. Fernández Solar had to work to overcome her initial self-centered character towards that of one directed to the caring of others above all. Her further inspiration for this self-transformation was her upcoming First Communion which led her to this commitment in an effort to achieve worthiness of what she was soon to receive. Fernández Solar received her Confirmation on 22 October 1909 and made her First Communion later on 11 September 1910. In September 1917 she sent a letter to the prioress of the Discalced Carmelite convent close to her home expressing her desire to enter the order. On October 18, 1917 a nun distributed candies to the children but she grew frustrated when she was given a small piece so hurled it out of her hand and refused another piece that the nun offered her. In late 1917 she and her mother left church and she turned to her mother in abruptness and asked whether she knew she would become a religious to which her mother told her that decision was for her father to make. Solar did not pursue it until from school she sent a letter to her father on 25 March 1919 that received no response; she returned home for a brief period but did not mention it and her father never alluded to it either but before she left for school again he consented when she asked him about it.