I have read about this. Even today modern esoteric Nazis refer to this events.
Himmler was very strong envolved in occult practices.
There worked a whole department of the SS about magic, witchcraft and sorcery.
I have one original book from this unit. But in the moment I didn't know where I have put it. I will look for it and can scan and post for proof the title.
They published hundreds of "scientific" works about this things. But this is not all.
They tried to use it too. There is a castle in Germany
http://en.wikipedia.org/wiki/WewelsburgThere they performed wicked and evil rituals. This is no legend.
Thank god they are dead.