Walpurgis Night falls on the Sun "quarter point" of the sun gear, between the spring equinox and the midsummer. It celebrates winter's last day. Valborg account for most Swedes as a symbol of spring and light. Eldar originally lit to burn the old and make way for the new.
In the Farmer year we were about to enter the first day of summer and all the animals that had been inside all winter would pasturing. It happened that the farmers then also lit fires to protect livestock against wild animals. Additionally bulldozed on hay land and needed large bonfire to burn the rice.
You know that in Sweden we have a long viinter. So now begins all Swedes become happy when summer is on the way.
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