Board Thread:Theories and Speculation/@comment-33485854-20180625233306/@comment-6769189-20180629054535

Thekillman wrote:

Hagoromo's case is similar to the Biju/Juubi. The juubi's power was split among the 9 biju, but when rejoined that power is rejoined too. Hagoromo's power was split among his children, and when those lineages are rejoined that power is too. Just as no particular Biju is necessary to recreate a TSB, no particular son is necessary to recreate the Rinnegan. This isnt necissarily true. Madara's eyes changed into Rinnegan due to 6 Paths chakra. It could be that that the Rinnegan, though a seperate dojutsu, resides in the eyes of Indra's bloodline. It was repeatedly stated that Indra recieved his eyes but he had a different dojutsu with a completely different set of powers. Not really inheriting his eyes if they are different. This would explain why Madara/Sasuke got Rinnegan, but only Naruto got SPSM.

Thekillman wrote:

But, my best bet is simply that it means power here: Recreating hagoromo's power is what awakens the Rinnegan, which is his power explicitly. It doesn't require never-before-seen energies and whatnot. Except Hagoromo also had SPS and Madara didnt get it when using Sage Mode even though he had 6 Paths Chakra.

Thekillman wrote:

Chakra is a term that only got vaguer over time, because Biju are said to be made of pure chakra even though they behave in un-chakra-like ways. E.g. Reaper Death Seal works on them (implying they're spirits/souls at least), which already means they're not 100% chakra. But then, chakra can also behave in a soul-like way (e.g. Minato, Kushina), blurring the lines. The Bijuu dont behave all that much different from chakra really. Chakra has the ability to take on just about any shape and form, from the 5 elements to shadows. IIRC if a bijuu "dies" its body disberses as chakra(according to the wiki, idk if it a flaw in the translation i read but the cited chapter doesnt mention the process), much like a Shadow Clone.

Kushina/Minato leaving behind chakra and it behaving like a soul is very similar to those weird worm things Tayuya summoned with her flute, which supposed to be made of more spirtual than physical energy. Chakra can also used to connect peoples hearts and memories. Its at all far fetched an idea that sealing some chakra that is set to appear in in someones subconscious could represent itself, think, feel, and act like a person or soul of a person.