St. Louis de Montfort's Treatise on the True Devotion to the Blessed Virgin is a spiritual guide that teaches total surrender to Jesus through Mary. This doctrine emphasizes that because Jesus came into the world through Mary, the safest and quickest way to be united with Him is by imitating Mary's total surrender. Through this practice, a person gives Mary the authority over all their actions, prayers, and merits so that she may use them for the glory of God.