Seraphim of Sarov in the context of "Theoria"

St. Sergius of Radonezh (Russian: Сергий Радонежский, romanized: Sergiy Radonezhsky; 14 May 1314 – 25 September 1392) was a Russian spiritual leader and monastic reformer.

He was the founder of the Trinity Lavra of St. Sergius near Moscow, what is now the most venerated monastic house in Russia. He exerted the greatest influence of any personage on the Russian Orthodox Church. Together with St. Seraphim of Sarov, he is one of the most highly venerated saints in Russia.

Nizhny Novgorod Oblast (Russian: Нижегородская область, romanized: Nizhegorodskaya oblastʹ) is a federal subject of Russia (an oblast). Its administrative center is the city of Nizhny Novgorod. It has a population of 3,119,115 as of the 2021 Census. From 1932 to 1990 it was known as Gorky Oblast (Russian: Горьковская область).

The oblast is crossed by the Volga River. Apart from Nizhny Novgorod's metropolitan area (including Dzerzhinsk, Bor and Kstovo) the biggest city is Arzamas. Near the town of Sarov there is the Serafimo-Diveyevsky Monastery, one of the largest convents in Russia, established by Saint Seraphim of Sarov. The Makaryev Monastery opposite of the town of Lyskovo used to be the location of the largest fair in Eastern Europe. Other historic towns include Gorodets and Balakhna, located on the Volga to the north from Nizhny Novgorod.