A passage in the "Poetic Edda" poem "Sigrdrífumál" describes runes being graven on the sun, on the ear of one of the sun-horses and on the hoofs of the other, on Sleipnir's teeth, on bear's paw, on eagle's beak, on wolf's claw, and on several other things including on Bragi's tongue. Then the runes are shaved off and the shavings are mixed with mead and sent abroad so that Æsir have some, Elves have some, Vanir have some, and Men have some, these being speech runes and birth runes, ale runes, and magic runes. The meaning of this is obscure.