>>510909467its because tengu are believed to be the souls of tantric monks who learned all the secrets of the universe but were too arrogant to truly become buddhas, so they experience a kind of false enlightenment when they die and 'ascend' into demonic creatures, sorta like how demonic ascension works in warhammer. its possible to ascend into a godlike being in buddhism, but if you are not enlightened you will just into some kind of demon. the specific tantric school that the japanese tantric monks come from derive from the black hat schools of tibet, who wear funny little geometric black hats.
>>510909889yeah korean shamans also wear the black hats, and theres are identical to the saturn hats described in old grimoires. picatrix says that in order to commune with saturn, you must dress like the jews and wear a wide-brimmed black hat like ortho jews wear