The Congregation of the Sisters of St. Thomas Aquinas has for its purpose, first and foremost, the establishment of a community that will enable Catholic women to lead a more perfect life, guided by the vows of poverty, chastity, and obedience. Its primary end is the personal sanctification of each of its members.
The life in the Congregation is not purely active, nor purely contemplative, but rather a vita mixta, a mixed life.
Therefore, aside from the various works to which the Congregation is devoted, the Sisters practice a life of common prayer, especially mental prayer and the recitation of the Divine Office.
The Motherhouse for the convent is located in El Mirage, Arizona. A second house is located in Brooksville, Florida.