Semi-Autonomous: In Eastern Orthodox and Byzantine Catholic churches, an entrance is a procession during which the clergy enter into the sanctuary through the Holy Doors.In the liturgical theology of the Eastern Orthodox Church, the angels are believed to enter with the clergy into the sanctuary, as evidenced by the prayers which accompany the various entrances.When the choir finishes singing the Third Antiphon (usually the Beatitudes), the deacon (or priest) lifts up the Gospel Book and says, "Wisdom!The Great Entrance occurs at a later point during the Divine Liturgy, near the beginning of the Liturgy of the Faithful, when the Gifts (bread and wine) to be offered are carried from the Chapel of Prothesis (a table on the north side of the sanctuary sometimes occupying its own apse), to be placed on the Holy Table.This entrance is made during the chanting of the Cherubic Hymn The Cherubikon that accompanies the Great Entrance was apparently added by the Emperor Justin II (565 - 578)[3] However, the Divine Liturgies celebrated on Holy Thursday and Holy Saturday have their own unique Cherubic Hymns.The priest removes the smaller veils from the diskos and chalice and censes the gifts, saying special prayers together with the deacon The Great Entrance symbolizes the triumphal entry of Christ into Jerusalem on Palm Sunday.The Liturgy of the Presanctified Gifts is celebrated on Wednesdays and Fridays during Great Lent and is a Vespers service combined with the distribution of Holy Communion that had been consecrated the previous Sunday.The Great Entrance is performed in absolute silence (rather than the choir singing, as at the normal Divine Liturgy).The reason for this is because the elements carried in the Great Entrance are not simply bread and wine (as at the normal Liturgy), but have already been Consecrated, and are believed to be the actual Body and Blood of Christ.