Total Consecration to Jesus through Mary is a Catholic devotional practice that entails a 33-day period of spiritual preparation culminating in a formal act of consecration to Jesus through the intercession of Mary. St. Louis de Montfort popularised this practice in the 18th century, and it has since been adopted by many Catholics as a way to deepen their relationship with Jesus and Mary. It entails completely surrendering to Jesus through Mary’s guidance and intercession in order to become more fully united with God’s will and grace.