The Feast of the Immaculate Conception of the Blessed Virgin Mary was chosen as the day when seminarians would, under the protection of our Heavenly Mother, become members of the Priestly Society of Saint Pius X.
In the first year study of Philosophy, seminarians make their first engagements in the Society, and those engagements are renewed every year on the Feast of the Immaculate Conception. During the Solemn Mass, the seminarians read their engagements in the Society in front of the Superior General (or in front of someone delegated by him). When making the first engagement, seminarians become members of the Society for a period of one year. Throughout their studies at the Seminary, they renew their engagements in the Society each year for a period of one year. During the year in which seminarians are ordained deacons, they engage themselves for a period of three years after which they engage themselves perpetually.
The Feast of the Immaculate Conception marks a very important step in the life of a seminarian in the Society and a joyful day in the life of the Society as well!
May Our Lady protect and guide the Society of St. Pius X and all its members!
In the end My Immaculate Heart will triumph!
(Our Lady to the Children of Fatima, July 13, 1917)