The evening prayer service of the Orthodox Church, traditionally celebrated at sunset. Vespers includes psalms, hymns, scripture readings, and incense. On Saturday evenings, Great Vespers is often combined with the Sunday Divine Liturgy. The service marks the end of the liturgical day and prepares the faithful for rest and reflection.

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 presentation of the three-year-old Virgin Mary in the Temple by her parents, Saints Joachim and Anna. Celebrated on November 21st, this feast honors Mary's dedication to God and her preparation for her role as Theotokos. According to tradition, Mary was raised in the Temple until her betrothal to Joseph.

The learned virgin martyr of Alexandria who defeated pagan philosophers in debate. Celebrated on November 25th, Katherine is patron of scholars, philosophers, and students. When tortured on a spiked wheel, it broke miraculously. She represents the union of faith and reason, showing that true learning leads to Christ.

A miraculous icon of the Mother of God found by hunters near the roots of a tree in Kursk. Celebrated on September 8th and March 9th, this icon accompanied Russian emigrants and is now in New York. The icon has survived fires, wars, and persecution, and is associated with many miracles. It represents the protection of the Mother of God over the Russian diaspora.