This holiday received its name from the church calendar - the day of honoring the memory of the holy prophet Elijah, who lived 9 centuries before the appearance of Jesus Christ on earth. The people believed that when Elijah was taken up to heaven in a chariot, a horseshoe flew off one of his horses and fell into a pond. Then, because of her, all the waters on earth cooled down. Therefore, from that day on, residents stopped swimming in rivers and lakes. This day was considered a day off; residents postponed work in order to avoid Ilya’s wrath.