On 18 August the Bulgarian Orthodox church marks the Assumption of St. John (Yoan) of Rila, the most revered Bulgarian saint, protector of Bulgaria, also called the miracle-worker of Rila. John of Rila is one of the most prominent figures of the Middle Ages having influenced the entire Christian Orthodox world.

Born in 876 in Skrino village in the foothills of Mount Osogovo, he lived in the time of Prince Boris, his sons Vladimir and Tsar Simeon the Great, and his son Tsar Peter. This period is known as the Golden Age, when Christianity became an official religion for Bulgarians, a period of flourishment of Bulgarian culture and literature.

While still a young man, John, who longed to devote his life to God, left the village where he was born and entered a monastery. Once he became a monk he left the monastery in search of solitude in Mount Rila. There, he founded Rila Monastery, and spend his life in prayer and solitude.

• Rila Monastery safeguards the relics of Bulgaria’s heavenly protector St. Ivan of Rila
  

He died in 946 and is buried in the small monastery church of Rila Monastery.