Board Thread:Theories and Speculation/@comment-25093611-20160322113057/@comment-734582-20160421075502

BakumatsuWarrior wrote: Agreed. It's weird how possessing a pair of magic eyes can give you unrelated powers like Black Flames, Susanoo, the Six Paths Technique, and whatnot. Imagine if a popular Marvel title were to pull the same shit, just with a different body part. Susanoo/Izanagi/Izanami/Tsukuyome/Amaterasu etc etc draws from the japanese pantheon of gods.

Tsukuyome and Amaterasu were born from the eyes of a god, whereas Susanoo was born from the nose. Not to mention, the Sharingan's power is overwriting reality. Amaterasu aren't just fire, they're a fire that defies reality (burning even things that cannot burn, like Fire).

It's not clear why the Six Paths work like that. It's possible that Nagato, being an Uzumaki, gained things like Asura path because of that. It was never clarified or explained. Another explanation is that similar to Infinite Tsukuyome, the Rinnegan is merely the indicator that such power is present. (just like the Rinnegan reflect in the eyes of the Six Paths of Pain or in the Infinite Tsukuyome users rather than being actual eyes)