Celebrating the Feast of the Immaculate Conception Mass is a joyous and reverent occasion marked by the Catholic Church on Dec. 8 each year. This solemn feast commemorates when the Virgin Mary was conceived without original sin. The Mass, conducted with intricate rituals and liturgical splendor, is a testament to the divine significance of this immaculate conception. It’s a time for the Cardinal Mooney Family to engage in reflection, and worship, that deepens the spiritual connection.