“Alf seidr,”
Elf magic?
elves are frequently mentioned in the alliterating phrase Æsir ok Álfar ('Æsir and elves') and its variants. This was a well-established poetic formula, indicating a strong tradition of associating elves with the group of gods known as the Æsir, or even suggesting that the elves and Æsir were one and the same. Moreover, in Skaldic verse the word elf is used in the same way as words for gods.
Sigvatr Þórðarson's skaldic travelogue Austrfaravísur, composed around 1020, mentions an álfablót ('elves' sacrifice') in Edskogen in what is now southern Sweden. There does not seem to have been any clear-cut distinction between humans and gods; like the Æsir, then, elves were presumably thought of as being humanlike and existing in opposition to the giants.
Many commentators have also (or instead) argued for conceptual overlap between elves and dwarves in Old Norse mythology, which may fit with trends in the medieval German evidence.
There are hints that the god Freyr was associated with elves. In particular, Álfheimr (literally "elf-world") is mentioned as being given to Freyr in Grímnismál. Snorri Sturluson identified Freyr as one of the Vanir. However, the term Vanir is rare in Eddaic verse, very rare in Skaldic verse, and is not generally thought to appear in other Germanic languages. Given the link between Freyr and the elves, it has therefore long been posited that álfar and Vanir are, more or less, different words for the same group of beings.
