Marialis Cultus is the title of a Mariological Apostolic Exhortation by Pope Paul VI on February 2, 1974. It is subtitled: "For the Right Ordering and Development of Devotion to the Blessed Virgin Mary," and focuses Marian devotions, clarifiying the way in which the Roman Catholic Church celebrates and commemorates Mary, the mother of Jesus. The preparation of the document reportedly took 4 years. The exhortation has three parts: Part 1 discusses the history of Catholicism's Marian devotions, as well as their rationale. Part 2 focuses on what should/will take place in the Church's Marian devotions in the future Part 3 touches on the Angelus and the Rosary prayers. Marialis Cultus gives guidelines for devotions to Mary by the Church - that is, it attempts to make sure that all Marian liturgical celebrations and public expressions of devotion align with established doctrine. It noted that every element of the church's prayer life, including Marian devotions, should draw its inspiration from the Bible and harmonize with the liturgy. The conclusion to the document emphasizes the theological and pastoral value of devotion to the Blessed Virgin Mary.