Here is a letter from a Soviet forced labour camp.
It is only by being a prisoner for religious convictions in a Soviet camp that one can really understand the mystery of the fall of the first man, the mystical meaning of the redemption of all creation, and the great victory of Christ over the forces of evil. It is only when we suffer for the ideals of the Holy Gospel that we can realize our sinful infirmity and our unworthiness in comparison with the great martyrs of the first Christian church. Only then can we grasp the absolute necessity for profound meekness and humility, without which we cannot be saved; only then can we begin to discern the passing image of the seen, and the eternal life of the Unseen.
On Easter Day all of us who were imprisoned for religious convictions were united in the one joy of Christ. We were all taken into one feeling, into one spiritual triumph, glorifying the one eternal God. There was no solemn Paschal service with the ringing of church bells, no possibility in our camp to gather for worship, to dress up for the festival, to prepare Easter dishes. On the contrary, there was even more work and more interference than usual. All the prisoners here for religious convictions, whatever their denomination, were surrounded by more spying, by more threats from the secret police.
Yet Easter was there: great, holy, spiritual, unforgettable. It was blessed by the presence of the risen God among us – blessed by the silent Siberian stars and by our sorrows. How our hearts beat joyfully in communion with the great Resurrection! Death is conquered, fear is no more, an eternal Easter is given to us! Full of this marvelous Easter, we send you from our prison camp the victorious and joyful tidings: Christ is Risen!This letter is quoted at the end of chapter 4, ``God as Man" in The Orthodox Way.
Interactions with such Christians while in a camp, led Alexander Solzhenitsyn to embrace faith in Jesus.