Asgard (Scand.). The kingdom and the habitat of the Norse gods, the Scandinavian Olympus ; situated “higher than the Home of the Light-Elves”, but on the same plane as Jotunheim, the home of the Jotuns, the wicked giants versed in magic, with whom the gods are at eternal war. It is evident that the gods of Asgard are the same as the Indian Suras (gods) and the Jotuns as the Asuras, both representing the conflicting powers of nature—beneficent and maleficent. They are the prototypes also of the Greek gods and the Titans.
Source: H.P.Blavatsky - The Theosophical Glossary