Most people today who have heard that ‘the Nightmare’ is an actual being in European folklore and not just a certain type of dream-state, associate the being with horses. A mare is indeed a horse but this interpretation is not correct. The mare of ‘the nightmare’ is a demon; and the word for horse and the word for nightmare derive from a different root.
Origins of the Futhark and the Northern Mysteries
The Ancient Germanic rune alphabet contains keys which make it possible to trace the origins of the Northern mysteries to shortly after the last Ice Age, 11,000 years ago; more properly the Late Glacial Maximum, lasting from 13,000 to 10,000 years ago.
After the glacial period, birch was the first deciduous tree to populate Europe. Its appearance coincides with the meaning and position of Berkana ‘birch twig’. The rune comes at the beginning of the third Aett; the Futhark is divided in three Aettir. The other tree species that populated Europe at that time was pine, represented by Eihwaz ‘yew’ in the runic alphabet.