What is a Praesidium?
The basic unit of the Legion of Mary is called a praesidium (a committee). This Latin word was used to designate a detachment of the Roman Legion performing special duty, such as a section of a military line, a fortified post, or a garrison. Each praesidium is named after a title of Our Blessed Lady, (Our Lady of Mercy); or from one of her privileges, (The Immaculate Conception); or from an event in her life, (The Visitation). No praesidium should be established in any parish without the consent of the parish priest or of the Ordinary (Bishop). The members hold a meeting every week under the guidance of a Spiritual Director and each member is assigned a work to be performed during the week.
Legionary duty requires from each legionary(member):
First, the punctual and regular attendance at the weekly meetings of the praesidium, and the furnishing there of an adequate and audible report on the work done;
Second, the daily recitation of the Catena;
Third, the performance of a substantial active legionary work, in the spirit of faith, and in union with Mary, in such fashion that in those worked for and in one's fellow-members, the Person of our Lord is once again seen and served by Mary, his Mother;
Fourth, absolute respect for the confidential nature of many matters discussed at the meeting or learned in connection with the legionary work.
Assignments
Assigned apostolic work is to be performed weekly, and may include: visiting the sick, reciting the Rosary in nursing and retirement homes, distributing Catholic literature and religious articles, and spreading the devotion to the family Rosary.
Membership
Active Membership -- Active membership is open to all baptised Catholics. Those over 18 years of age in Senior Praesidia, and those under 18 in Junior Praesidia. The only obligation being a willingness to fulfill all obligations of Legion membership.
Auxiliary Membership -- Auxiliary members support the Legion through their prayer.