The mytheme was extensively explored in Viktor Rydberg's 1886 Investigations into Germanic Mythology, who provides both ancient Scandinavian and Indian examples.
[citation needed] Donald Mackenzie described the World Mill’s relationship to the sacred spiral and the revolution of the starry heavens, providing analogs in Chinese, Egyptian, Babylonian, and AmerInd folklore, before concluding "that the idea of the World Mill originated as a result of the observation of the seasonal revolutions of the constellation of the 'Great Bear'.
Tolley comes to the conclusion that the cosmic mill was not, in extant Norse sources, a widely developed mythologem.
Nonetheless, the myth of Mundilfæri connects the turning of the cosmos via a 'mill-handle' with the regulation of seasons, and the myth of Bergelmir suggests the concept of a creative milling of a giant's body, associated in some way with the sea,Richard M. Dorson surveyed the views of 19th-century writers on the World Mill in his 1968 historical review, Peasant Customs and Savage Myths: Selections from the British Folklorists,[3] and the mytheme is discussed in the Kommentar zu den Liedern der Edda,[4] in regard to the Eddic poem, Grottasöngr.
A similar conception underlies the Eddaic Mundilföri, the giant who makes the heavens turn round in its daily and yearly revolutions by moving (færa) the handle (mundil, möndull) of the great world-mill — that being the Teutonic idea of the revolving vault of heaven.