Easter. The Holy Fire.

The Holy Fire (Russian " Holy Light ") is a miracle that occurs every year at the Church of the Holy Sepulchre in Jerusalem on Holy Saturday, the day preceding Orthodox Easter. It is the longest attested annual miracle in the Christian world. It has only been consecutively documented, however, since 1106, previous mentions being sporadic. The ceremony is broadcast live in Greece, Russia and other Orthodox (original christianity) countries. Russian Christianity has a more 1000 year history.
In my video shown some icons Andrey Rublev (1360 - 1427y.) is the greatest Russian iconographer. The Holy Trinity is Rublev's most famous work and also one of the most widely known of Russian icons.