Vespers for the Ascension of Our Lord
The Feast of the Ascension of our Lord God and Savior Jesus Christ is celebrated each year on the fortieth day after the Great and Holy Feast of Pascha (Easter). Since the date of Pascha changes each year, the date of the Feast of the Ascension changes. The Feast is always celebrated on a Thursday.
The Feast itself commemorates when, on the fortieth day after His Resurrection, Jesus led His disciples to the Mount of Olives, and after blessing them and asking them to wait for the fulfillment of the promise of the Holy Spirit, He ascended into heaven.