The Legion of Mary is a worldwide Catholic lay apostolate focused on Marian devotion, prayer, and service. The Mystical Rose Praesidium (Saint Rose's local chapter) meets each Monday at 7:00 PM. Both Active Legionaries, who participate in weekly meetings of the Legion, and Auxiliary Legionaries, who don’t attend meetings, but pray in unity with Active Legionaries, commit to saying the Rosary and additional prayers designated for Legionaries. Active Legionaries report to other Legionaries at the weekly meetings about the "Spiritual Works of Mercy" in which they have engaged. This is for the purpose of encouragement and inspiration of all Legionaries in regard to what, with God's Grace, all Christians need to do for the Glory of God and the Salvation of Souls.