The story of Bernadette Soubirous and Our Lady of Lourdes is told by Werfel with many embellishments, such as the chapter in which Bernadette is invited to board at the home of a rich woman who thinks Bernadette's visionary "lady" might be her deceased daughter. In side-stories and back story, the history of the town of Lourdes, the contemporary political situation in France, and the responses of believers and detractors are delineated. Werfel describes Bernadette as a religious peasant girl who would have preferred to continue on with an ordinary life, but takes the veil as a nun after she is told that because "Heaven chose her", she must choose Heaven. Bernadette's service as a sacristan, artist-embroiderer, and nurse in the convent are depicted, along with her spiritual growth. After her death, her body as well as her life are scrutinized for indications that she is a saint, and at last she is canonized.