Okay, this is a little rough around the edges for a witch to say. But this has been the basis of my thought even before I dedicated myself to the path. I thought it was great enough to be expressed, so mote it be.
Fairy rings occupy a prominent place in European folklore as the location of gateways into elfin kingdoms, or places where elves gather and dance. According to the folklore, a fairy ring appears when a fairy, pixie, or elf appears. It will disappear without trace in less than five days, but if an observer waits for the elf to return to the ring, he or she may be able to capture it.