The most important element of an Eastern Christian’s worship life is the Divine Liturgy (Mass in the Roman Church). The Divine Liturgy of St. John Chrysostom is used on most Sundays and weekdays of the year. Dating back to the 4th Century, this Liturgy is based upon Liturgical practices reaching back to the very infancy of the Church. The Divine Liturgy of St. Basil the Great is used on special days of the year, and features an elaborate and more poetic Anaphora (Eucharistic Prayer). The Liturgy of the Presanctified Gifts is used on weekdays of the Great Fast (Lent), and is actually a Vespers service with Holy Communion. The Divine Liturgy may last up to 2 hours, in which we truly enter the Kingdom of God, where heaven and earth meet, and where there is no time as we know it.