The central worship service of the Orthodox Church, celebrating the Eucharist (Holy Communion). Usually celebrated on Sundays and feast days, the Divine Liturgy consists of the Liturgy of the Word (scripture readings) and Liturgy of the Faithful (Eucharistic prayer and communion). The most common forms are the Liturgies of St. John Chrysostom and St. Basil the Great.

The Archangel Gabriel's announcement to the Virgin Mary that she would bear the Son of God. Celebrated on March 25th, exactly nine months before Christmas, this feast honors Mary's "Yes" to God's plan of salvation. The service emphasizes both the Incarnation of Christ and the Theotokos's role in our redemption.

The celebration of Christ's triumphal entry into Jerusalem, when crowds welcomed Him with palm branches. This feast begins Holy Week and is marked by the blessing and procession of palm branches (or pussy willows in northern climates). The service combines joy for Christ's kingship with anticipation of His upcoming Passion.

The Patriarch of Moscow who led the Russian Orthodox Church through the Communist persecution. Celebrated on April 7th, Tikhon was elected Patriarch in 1917 and courageously opposed Soviet attempts to control the Church. He defended Orthodox faith and clergy during the most difficult period of Russian Church history. He represents faithful leadership under persecution.