antinazi = i'm not sure i follow what you are saying.
Mystery and mysticism are very closely related words. If I'm not mistaken mysticism comes from German, where another word is used to describe the New Agey, wishy washy type of mysticism (something like mysticunzer or some such word), and mysticism is used to describe those experiential spiritual practices that usually emerge from an established religion.
To discover a secret a human keeps is not mysticism.... mysticism carries a connotation of transcension or supernatural revelation.