Some people link this festivity with celebrations and rituals of pagan origin. It is celebrated in the last third of the month of June. The purpose was to "give more strength to the sun". In the European countries of the Mediterranean, bonfires are made.
Fire is associated with the function of "purification and renewal", for which old furniture will be burned. It coincides enough with the date of the summer solstice, in the northern hemisphere.
Orchestras animate the neighborhoods of towns and cities, rockets are launched and parties are held on the beaches, there is fun until the wee hours of the morning.