In the epic songs of the Vladimir cycle, as well as in the semi-religious and religious ballads, he figures as the strongest and most popular hero, under the name of "Ilya Murometz (Ilya of Murom), the Old Kazak," and his characteristic feats, as well as those attributed to his "heroic steed, Cloud-fall," are supposed, by the school of Russian writers who regard all these poems as cosmic myths, rather than as historical poems, to preserve the hero's mythological significance as the Thunder-god Perun.
He plays a similar part in the very numerous religious ballads on the Last Judgment.

St.Michael acts as the judge.

Some "sinful souls" commit the gross error of attempting to bribe him: whereupon, Michael shouts, "Ilya the Prophet! Anakh! Take ye guns with great thunder! Move ye the Pharaoh mountains of stone! Let me not hear from these sinners, neither a whine nor a whimper!" In Lithuania the Thunder-god's ancient name is still extant in its original form of Perkun; the Virgin Mary is called, "Lady Mary Perkunatele" (or "The Mother of Thunder"), according to a Polish tradition; and in the Russian government of Vilna, the 2d of February is dedicated to "All-Holy Mary the Thunderer." It is evidently in this character that she plays a part similar to that of St.Michael and Ilya the Prophet combined, as above mentioned, in another ballad of the Last Judgment.

She appears in this ballad to be the sole inhabitant of heaven, judge and executioner.

With her "thundering voice" she condemns to outer darkness all who have not paid her proper respect, promising to bury them under "damp mother earth and burning stones." To the just, that is, to those who have paid her due homage, she says: "Come, take the thrones, the golden crowns, the imperishable robes which I have prepared for you; and if this seem little to you, ye shall work your will in heaven." St.Yegory the Brave--our St.George--possesses many of the attributes of Perun.