https://en.wikipedia.org/wiki/Black_Sun_(symbol)
Satanists admit to using Nazi occultism symbols
https://en.wikipedia.org/wiki/Occultism_in_Nazism
From section on demonic possession
August Kubizek, one of Hitler's closest friends since childhood, claims that Hitler---17 years old at the time—once spoke to him of "returning Germany to its former glory"; of this comment August said, "It was as if another being spoke out of his body, and moved him as much as it did me."
Also
According to James Herbert Brennan in his book Occult Reich, Hitler's mentor, Dietrich Eckhart (to whom Hitler dedicates Mein Kampf), wrote to a friend of his in 1923: "Follow Hitler! He will dance, but it is I who have called the tune. We have given him the 'means of communication' with Them. Do not mourn for me; I shall have influenced history more than any other German.
https://en.wikipedia.org/wiki/Dietrich_Eckart
was a key influence on Adolf Hitler in the early years of the Nazi Party and was a participant in the 1923 Beer Hall Putsch.
He died shortly after the putsch, and was elevated during the Nazi era to the status of a major thinker and writer