He was reared in piety by his father, a priest in Novgorod. One day, hearing the words of the Gospel, If any man will come after me, let him deny himself and take up his cross and follow me, he renounced the world and entered the Monastery of St Sergius of Radonezh. He became St Sergius’ disciple and, after a few years, became known for his virtue and his knowledge of Scripture. In 1374, with the blessing of his spiritual father, he founded the Monastery of Vysotsk, becoming its first abbot. After heading the monastery for fourteen years, he traveled to Kiev and then, in 1401, to the Monastery of the Stoudion in Constantinople. There he devoted himself to translating books from Greek to Slavonic, sending his translations back to his monastery in Russia. It was he who translated the Jerusalem Typikon and several collections of the writings of the Fathers of the Church, immeasurably enriching the life of the Church in Russia. He reposed in peace in Constantinople.
His disciple Athanasius the Younger was made Abbot of Vysotsk on the elder’s departure for Constantinople, and served as Abbot for eight years, reposing in peace in 1395. He was called ‘perfect in fasting, strong in self-restraint, zealous in prayer, patient in privations and tribulations.’ The Synaxarion says that “He taught his monks to keep careful watch on every movement of the heart so as to drive away every thought displeasing to God.”