During Great Lent we Orthodox celebrate the Liturgy of the Presanctified Gifts. A tip of the kamilavka to Fr. Thomas Hopko for the following:
The usual Divine Liturgy is not served during the weekdays of Great Lent because of the paschal character of the Liturgy itself. In its place the Liturgy of the Presanctified Gifts is celebrated. The Liturgy is prescribed for Wednesday and Friday evenings during Great Lent. (Present practice here is to serve the Liturgy only on Wednesday). This liturgy is the solemn Lenten Vespers with Holy Communion added to it. The Communion is received from the Sacramental Gifts of bread and wine offered and sanctified at the Divine Liturgy of the previous Lord’s Day.
At the Lord’s Day Liturgy, the priest prepares a “lamb” (the bread which becomes Christ’s Body at the Divine Liturgy) which is then consecrated together with the wine and is kept for the Presanctified Liturgy. During the chanting of the Psalms the night of the Liturgy, the priest places the Presanctified Gifts on the diskos. He carries them in solemn procession around the back of the altar table to the table of oblation.
The evening reception of Communion at the Presanctified Liturgy is fulfilled after a day of prayer and fasting. The Liturgy of the Presanctified Gifts is one of the great masterpieces of Orthodox piety and liturgical creativity.