The holiday of Kupala Night is an ancient pagan and folk festival originally celebrated by the Eastern Slavs. With the advent of Christianity, there were certain changes, but other traditions remained and today the holiday is celebrated with music, dancing, and bonfires.
As with any folk holiday, there are many rituals associated with the day of Ivan Kupala. One of the most popular rituals of this holiday is jumping over bonfires, which is believed to bring good luck, health, and love.
Take a look at Sputnik's gallery to see how Kupala Night is celebrated in Russia's Tatarstan: