Elijah (August 2) is one of the major Orthodox feast days. The celebration is linked to the pre-Christian tradition of interpreting rain on this day (after the normal lack of rain at the end of July) as signalling a good harvest.
Feast of Elijah, Orthodox church of the Prophet Elijah, Vjeljamichy 2010. Сьвяток Ільлі, Царква Сьвятога прарока Ільлі, Велямічы 2010 год.