Board Thread:Naruto Discussions/@comment-1018594-20160409062530/@comment-734582-20160411113603

UltimaDude wrote: That might be too much of a stretch The Naruto story is very open for interpretation at many points. Truth is, many things happened at the same time. It's not impossible, though i think Kishimoto did this more out of a thematic aspect than to truly explain how they got it.

If you want a new epiphany:

The Biju have Six paths power of their own. Nothing overly fancy, but their ability to regenerate upon death is essentially Transmigration. Except that, since their link to the Statue is broken, they have no original body to migrate to and they randomly reappear in the world. This is why it took Akatsuki three days to seal a Biju: they had no (strong) connection to Gedo. Once this was done and the connection re-established, Obito (and madara) could easily seal and unseal them.

Naruto, upon gaining chakra from all biju, connected enough of this Six Paths power to call out Hagoromo. After all, we know Hagoromo and Hamura had Six Paths Yang and Yin power, but upon becoming Sage Hagoromo dished out both Yin and Yang to Sasuke and Naruto.