Mother Mary Aikenhead, the foundress of the Sisters of Charity chose the crest and motto for the Sisters of Charity to symbolise the Sister's dedication to serving God.
The cross and the crown are symbols of redemption and eternal life. The letters MA in the centre of the crest are the initials of one of the titles given to the Mother of God Maria Angelorum, Mary Queen of the Angels, the Patroness of the Sisters of Charity. In the Book of Revelation, the Mother of God is depicted with a crown of twelve stars with the moon beneath her feet. Similarly, in the crest, the stars appear above the letters MA and the moon below.