In the novel The Secret Life of Bees why were sister names from calendar?

In the novel "The Secret Life of Bees" by Sue Monk Kidd, the Daughters of Mary, a group of black women who raise bees and produce honey, name their sisters using names chosen from the Catholic liturgical calendar. Each sister's name represents a particular saint or religious figure and carries symbolic significance related to their qualities or roles within the community. These names serve as spiritual titles that reflect aspects of the sisters' personalities and journeys