Marian devotions in the context of "Intercession of saints"

The Eastern Orthodox Church, officially the Orthodox Catholic Church, and also called the Greek Orthodox Church or simply the Orthodox Church, is one of the three major doctrinal and jurisdictional groups of Christianity. As of 2012, it has approximately 300 million adherents and is the third largest religious community in the world after Catholics and Sunni Muslims. The Eastern Orthodox Church operates as a communion of autocephalous churches, each governed by its bishops via local synods. The church has no central doctrinal or governmental authority analogous to the pope of the Catholic Church. Nevertheless, the Ecumenical Patriarch of Constantinople is recognised by them as primus inter pares ('first among equals'), a title held by the patriarch of Rome prior to 1054. As one of the oldest surviving religious institutions in the world, the Eastern Orthodox Church has played an especially prominent role in the history and culture of Eastern and Southeastern Europe. Since 2018, there has been an ongoing schism between Constantinople and Moscow, with the two not in full communion with each other.

Eastern Orthodox theology is based on the Scriptures and holy tradition, which incorporates the dogmatic decrees of the seven ecumenical councils, and the teaching of the Church Fathers. The church teaches that it is the one, holy, catholic and apostolic church established by Jesus Christ in his Great Commission, and that its bishops are the successors of Christ's apostles. It maintains that it practises the original Christian faith, as passed down by holy tradition. Its patriarchates, descending from the pentarchy, and other autocephalous and autonomous churches, reflect a variety of hierarchical organisation. It recognises seven major sacraments (which are called holy mysteries), of which the Eucharist is the principal one, celebrated liturgically in synaxis. The church teaches that through consecration invoked by a priest, the sacrificial bread and wine become the body and blood of Christ. The Virgin Mary is venerated in the Eastern Orthodox Church as the Theotokos, which means 'God-bearer', and she is honoured in devotions.

A shrine to the Virgin Mary, or Marian shrine, is a shrine marking an apparition or other miracle ascribed to the Blessed Virgin Mary, or a site centered on historically strong Marian devotions. Such locales are often the destinations of Christian pilgrimages.

A Marian apparition is a reported supernatural appearance of Mary, the mother of Jesus. While sometimes described as a type of vision, apparitions are generally regarded as external manifestations, whereas visions are more often understood as internal, spiritual experiences. Throughout history, both Marian apparitions and visions have been associated with religious messages, devotional practices, and pilgrimage traditions.

In the Catholic Church, for a reported appearance to be classified as a Marian apparition, the person or persons who claim to see Mary (the "seers") must claim that they see her visually located in their environment. If the person claims to hear Mary but not see her, this is known as an interior locution, not an apparition. Also excluded from the category of apparitions are dreams, visions experienced in the imagination, the claimed perception of Mary in ordinarily-explainable natural phenomena, and miracles associated with Marian artwork, such as weeping statues.

Marian hymns are Christian songs focused on Mary, mother of Jesus. They are used in devotional and liturgical services, particularly by the Catholic, Eastern Orthodox, Oriental Orthodox, and Anglican churches.

Some have been adopted as Christmas hymns. Marian hymns are not popular among Protestants who see Marian veneration as idolatry.

May devotions to the Blessed Virgin Mary refer to special Marian devotions held in the Catholic Church during the month of May honoring Mary, mother of Jesus, as "the Queen of May". These services may take place inside or outside. A "May Crowning" is a traditional Roman Catholic ritual that occurs in the month of May.