I think you mean it is celebrated every year

I'm curious aboutt he origins of the festival, especially the burning of the fallas figures. Typically, such a ritual burning is intended as a form of sacrifice - the logic being that by destroying it in this world, it is moved to the next world.

I don't know much about pre-Christian Spain, but it *was* part of the Celtic "empire", and so the similarities to the much-famed wicker man are likely not coincidental.