The following ritual was recorded to have been performed in many parts of Europe on the eve of Summer solstice:
A wheel is lit up on top of a hill. The wheel is rolled down the hill. As the wheel rolls down the hill, the wheel's fire gets stronger and stronger because of the increased air circulation around the wheel. People handling and directing the wheel aim to plunge the now madly burning wheel into the river which flows at the bottom of the hill and extinguish the fire.
What was the meaning of this ritual?
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Old European culture: Burning rolling wheel