What was Ariosophy, and how directly did it feed into Nazi ideology?

Ariosophy is the name historians give to the occult racial-mystical movement founded in Austria and Germany between roughly 1890 and 1935 by two men, Guido von List and Jörg Lanz von Liebenfels, who each built rival esoteric systems around the claim that an ancient, spiritually and racially superior 'Aryan' or 'Ario-Germanic' people had once possessed occult powers later lost through racial interbreeding with supposedly inferior races. The standard academic history of the movement is Nicholas Goodrick-Clarke's The Occult Roots of Nazism: The Ariosophists of Austria and Germany, 1890-1935 (1985), which describes its own thesis as arguing not that Nazism was itself an occult movement, but that Ariosophist doctrines helped form the symbolic and ideological background that predisposed segments of the German and Austrian public toward accepting racial and nationalist mysticism.

Ariosophy borrowed its basic apparatus directly from Theosophy (hidden masters, esoteric hierarchies, root races, and cyclical spiritual evolution drawn from Blavatsky's system) and repurposed it to serve a specifically racial and antisemitic program that Theosophy itself, for all its own theological departures from Christianity, did not teach. List and Lanz each founded organizations to propagate their ideas: List's High Armanen Order operated within his List Society (founded 1908), while Lanz founded the Order of the New Templars (Ordo Novi Templi) in 1900 and published the magazine Ostara from 1905. Two further groups grew out of this milieu with direct lines into Nazism: the Germanenorden, founded in 1912 and inspired by List's ideas, and its Bavarian successor the Thule Society, refounded in 1918, whose members included early patrons and associates of the fledgling Nazi Party, including Dietrich Eckart, one of Hitler's early mentors.

Historians differ on how strong to draw the causal line from Ariosophy to the Nazi state itself (Goodrick-Clarke's own conclusion is comparatively cautious, treating Ariosophy as a symptom of the cultural climate rather than a direct blueprint the Nazis followed), but the documented links are real and specific: shared personnel through the Thule Society, shared racial-occult vocabulary, and Adolf Hitler's own documented early exposure to Lanz's Ostara. This is a case where the historical record itself, not merely a theological judgment, marks the movement as a serious and consequential departure: Ariosophy replaced the biblical account of a single human family created in God's image (Genesis 1:27; Acts 17:26) with a racial hierarchy claiming some lineages possess innate spiritual superiority: a claim Scripture directly contradicts and history shows helped prepare the ground for genocide.