https://www.oca.org/orthodoxy/the-orthodox-faith/worship/the-church-year/holy-Saturday
The Vespers and Matins of the Blessed Sabbath, together with the Divine Liturgy which follows, form a masterpiece of the Orthodox liturgical tradition. These services are not at all a dramatic re-enactment of the historical death and burial of Christ. Neither are they a kind of ritual reproduction of scenes of the Gospel. They are, rather, the deepest spiritual and liturgical penetration into the eternal meaning of the saving events of Christ, viewed and praised already with the full knowledge of their divine significance and power.The Church does not pretend, as it were, that it does not know what will happen with the crucified Jesus. It does not sorrow and mourn over the Lord as if the Church itself were not the very creation which has been produced from his wounded sides and from the depths of his tomb. All through the services the victory of Christ is contemplated and the resurrection is proclaimed. For it is indeed only in the light of the victorious resurrection that the deepest divine and eternal meaning of the events of Christ’s passion and death can be genuinely grasped, adequately appreciated and properly glorified and praised.