A Crucession, or Cross Procession (Russian: Крестный ход, Krestnyi khod), is a procession that takes place in the Eastern Orthodox and Eastern Catholic liturgical traditions. The name derives from the fact that the procession is headed by a cross.
Normally, the Crucession is preceded by a lantern. Then comes the cross, flanked by processional banners and icons. The Choir and Clergy will come next, followed by the faithful. If there are altar servers, the Crucession will be accompanied by incense and candles. During the Crucession, the choir sings hymns that are particular to the event the Crucession celebrates. Crucessions will often circle around the outside of the Temple (church building) three times, then come to stop on the front steps of the building, where the next portion of the service will take place. Other Crucessions will be in the form of a procession from the Temple to a particular location where the next portion of the service will take place.
The most well-known Crucessions are:
- Holy Week—On Great Saturday, a Crucession is made as the clergy carry the Epitaphios (Slavonic: Plashchanitsa) around the Temple three times, as the Choir sings the Trisagion. After the third circuit of the Temple, the clergy cary the Epitaphios into the Temple, and hold it above the door, so that as all enter the Temple they pass under the Epitaphios, symbolically entering with Christ into the tomb. Because this is a sorrowful procession, the banners are not carried in this Crucession.
- Pascha (Easter)—The first Paschal Crucession takes place during the Paschal Vigil on Easter Sunday; then there is another Crucession called for on every day of Bright Week either following Paschal Matins or after the Paschal Divine Liturgy. During the Crucession the Choir sings the Paschal Canon. On the weekdays of Bright Week the Artos is carried in the Crucession (though not at the Crucession during the Paschal Vigil, because at that point it has not yet been blessed).
- Theophany—Procession at the end of Liturgy from the Temple to a river or shore where the Great Blessing of Waters will take place. Afterwards, the Crucession returns to the Temple for the completion of the service. The choir sings special hymns of the Feast written for this service.
- Dormition—In those churches and monasteries that observe the rite of the Burial of the Mother of God, a crucession takes place with the Epitaphios of the Theotokos, patterned after the one on Great Saturday.
- Moleben—Usually on the Patronal Feast of a Church or Monastery, there will be a Crucession around the outside of the Temple, while a Moleben (prayer of intercession) is celebrated to the Patron Saint.
- Funeral—The coffin is carried from the Temple to the grave in a crucession. If it is the funeral of a layman, the choir sings the Trisagion; if the deceased is a priest or bishop the clergy will chant the Great Canon of St. Andrew.
In 1991, the relics of St. Seraphim of Sarov were rediscovered after being hidden in a Soviet anti-religious museum for seventy years. This caused a sensation in post-Soviet Russia, and indeed throughout the Orthodox world. A crucession was formed to escort the relics, on foot, all the way from Moscow to St. Seraphim-Diveyevo Convent, where they remain to this day. The Patriarch of Moscow himself took part in a portion of this crucession.
On May 20, 2007 probably the longest krestny khod was started in the city of Vladivostok on Russia's Pacific coast that will go all the way to Moscow. 
The concept of a procession headed by the cross is not alien to Catholic Church either. On July 1, 2007, the so-called "Journey of the Cross and Icon" started in Sydney Airport. The participants, carrying a large 3.8 metre-high wooden cross and a large 15 kilogram Icon of the Virgin Mary, traveled across all of the dioceses of Australia, returning to Sydney for World Youth Day 2008 in July 2008.
- Krestny khod
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- Traditional Crucession
- Crucession on the Feast of the Dormition
- Crucession at Ascension Convent on the Mount of Olives at Jerusalem
ja:十字行 ru:Крестный ход fi:Ristisaatto