Fairy Folklore & Mushroom Circles

As I've posted before, the association between elves, dwarves and other 'elemental spirits' to mushrooms is most likely due to visions of elf-like entities induced by the ingestion of psychedelic mushrooms (see link in comments). But fairy rings may also be the inspiration behind ancient stone circles, connecting to astronomical observations of the sky.

According to www.fungi.com, some of the oldest living mushroom colonies are fairy rings growing around the famous Stonehenge ruins in England. The rings are so large that they can best be seen from airplanes.

Perhaps the Druids built Stonehenge inside the fairy rings, sacrificed their savior the mushrooms by eating them and then peered at the sky as the mushrooms 'opened up the heavens.' Whatever "elf" or entity that appeared in their vision then became the anthropomorphized personality of the particular celestial event they were celebrating.