Mark Travers writes about the world of psychology. Belief in the occult—whether it’s astrology, tarot or other mystical practices—can be a source of comfort, guidance and meaning for many.

Himmler, who leant into mysticism and the racist 'philosophy' of ancient Aryan history from a young age, amassed a collection of 13,000 books on the occult - and his SS based its logo on Armanen ...