All major feasts in the Liturgical year are gifted a leave-taking, which indicates the end of the feast period. This allows the faithful an opportunity to celebrate the feast service one last time. When we experience something edifying, it becomes human nature to long and desire for that experience again, and thus, the Church in its infinite wisdom provides this opportunity to experience the Pascha service once more.

On the Wednesday after the Sunday of the Man Born Blind (the 6th Sunday after Pascha), we celebrate this Return (apodosis), or completion, of the post-festal period of Pascha, (including not fasting on this day).

The services of the day, which include a paschal liturgy, are sung in a manner identical to that of the Bright Week. This is actually the 39th day after Pascha, the eve of the Ascension Day, when we sing the Resurrection Hymn, Khrystos Voskres, and exchange the Resurrection greeting for the last time.

Sources

• https://www.saintmary.org.au/leave-taking-and-ascension/

• https://arizonaorthodox.com/2021/06/02/from-pascha-to-pentecost/