Oberon is king of the faeries in Shakespeare (he existed before that, but that is the best known early work featuring him). Earthen mounds are also known as faerie forts. A barrow is a raised grave. Yuletide before being adopted by Christianity was a pagan winter festival. In folklore that was when elves, faeries, and spirits conducted the Wild Hunt. People that viewed the Wild Hunt could be pulled into the underworld or faerie realm, thus the warning of not venturing there during that time..
Oberon is king of the faeries in Shakespeare (he existed before that, but that is the best known early work featuring him). Earthen mounds are also known as faerie forts. A barrow is a raised grave. Yuletide before being adopted by Christianity was a pagan winter festival. In folklore that was when elves, faeries, and spirits conducted the Wild Hunt. People that viewed the Wild Hunt could be pulled into the underworld or faerie realm, thus the warning of not venturing there during that time..