I think the root of the rinnegans and what I expect of the tenseigans 6 paths powers is inspired from the Samsara concept
And samsara deals with the cycle of rebirth aka reincarnation. And samsara has 6 categories of things you can get reincarnated on the wheel of life.
A deva (god), a ashura (demon), human, animal, preta (ghosts), naraka (spirits damned in hell)
Also these six paths constitute six realms I'm sure a six path dojutsu could vary in abilities of what power they get from each realm for example deva path we usually see we gravity powers but maybe you get a fire devas flame ability or something.
And samsara deals with the cycle of rebirth aka reincarnation. And samsara has 6 categories of things you can get reincarnated on the wheel of life.
A deva (god), a ashura (demon), human, animal, preta (ghosts), naraka (spirits damned in hell)
Also these six paths constitute six realms I'm sure a six path dojutsu could vary in abilities of what power they get from each realm for example deva path we usually see we gravity powers but maybe you get a fire devas flame ability or something.
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