From Pascha until Pentecost, instead of the hymn to the Theotokos "It is truly meet..." we replace it with the Paschal hymn: "Shine, shine, O New Jerusalem, for the glory of the Lord has risen upon thee. Now dance for joy and be glad, O Zion! And thou, pure Mother of God, rejoice in the rising of Him Whom thou didst bear." (different variations)