The founders of the Spaso-Preobrazhensky Valaam Monastery, the Venerable Sergius and Herman, according to church tradition, were Greek hierophants who came to the possessions of Veliky Novgorod in the tenth century along with the first Orthodox missionaries. Historical information about the founders of the Valaam Monastery is scarce. Church tradition and ancient chronicle monuments became evidence of the Monks' monastic feat.

More than once, during the time of enemy invasions (XII, XVII centuries), the monastery was devastated, and monastic service was interrupted here for many decades. During the invasions, church monuments and monastery shrines were destroyed, and the richest monastery library and manuscript repository were repeatedly burned and looted. The lives of St. Sergius and Herman of Valaam have also been lost.

The meaning of the monastic life of Saints Sergius and Herman was to enlighten the pagan Karelian tribes with the light of the Christian faith, to establish Orthodoxy in the North of Russia, and to found a monastic monastery, which became a stronghold of Orthodoxy in the early centuries of Christian enlightenment. This is evidenced by the ancient lives of St. Abraham of Rostov, which tell about his stay on Valaam, about the existence of an Orthodox monastery here in the tenth century.

The ancient Novgorod chronicles report the discovery of the relics of St. Sergius and Herman and their transfer to Novgorod during the invasion of the Swedes in 1163-1164. Perhaps it was then that the local glorification of the founders of the Valaam Monastery took place, and the beginning of the church veneration of St. Sergius and Herman was laid. A reminder of the lost lives of the Saints is found in numerous lists of the "Valaam Conversation", a monument of church journalism of the XVI—XVII centuries. The beginning of the "Conversation" is undoubtedly an excerpt from the September Mines, which tells about the transfer of the relics of St. Sergius and Herman ("Karelian Wonderworkers") from Novgorod to the monastery of the "All-Merciful Savior" to "calm the military danger", apparently in 1182, which is confirmed by the Novgorod chronicle sources. The extremely widespread distribution of the "Valaam Conversation", known in many lists of the XVI — XVIII centuries, testifies to the high spiritual authority of the founders of the Valaam monastery, since it was their spiritual mouths that expressed the position of the "non-possessors" in the famous church polemics of the XVI century.

In 1819, the Holy Synod prescribed the all-Russian veneration of the Saints of Valaam and determined the days of the church celebration of their memory on June 28 (July 11, A.D.) and September 11 (September 24, A.D.).

The relics of Saints Sergius and Herman still rest under a bushel in the Transfiguration Cathedral of the Valaam Monastery. The evidence of the grace-filled prayerful help of the Venerable Ones is the numerous miracles revealed by the faith of those who ask and pray.