The roots of this festival are lost in time and go back to long before the arrival of Christianity. It is believed that its most remote origin began in Greek pagan celebrations in the honour of Apollo, where, the current Sant Joan bonfires were lit. Be that as it may, this holiday worships the sun and the arrival of the summer solstice in the northern hemisphere. The main event is about building a fire to give more power to the sun, because the arrival of the summer solstice was becoming weaker and therefore the days were getting shorter. The idea is that on the night of this important event, the sun reachest its maximum point, before starting to set gradually down. In addition, it was believed that the flames had a purifying action on those who watched or jumped over them. Later in history, this celebration would be continued by Christians and adopted a new and very different meaning: the celebration of the birth of San Juan Bautista. The Bible tells us that the father of Sant Juan ordered a fire to announce the birth of his son, Juan Bautista.