A thousand years was far too long, and far too distant.
It was so distant that both Gamamaru and Hagoromo, who lived for ages, showed the marks of time upon themselves.
Over a thousand years, Otsutsuki Hagoromo sat and watched mortals grow generation after generation, only to die generation after generation...
On and on it went, in an endless cycle.
Amidst these dry and boring years, watching the increasing number of souls entering the underworld brought a smile to his face.
Millennia of planning had allowed Hamura Ōtsutsuki to amass a strength that surpassed the peak battle prowess of his mother, Kaguya Otsutsuki.
This made it so that even when the immortals of the three Summoning Animal Sanctuaries simultaneously besieged Otsutsuki Hagoromo, he still held the upper hand.
Chakra! Natural Energy!
In essence, they were both energies, and both could act as fuel to ignite the path of transcendence.
The similarity between the two was that chakra carried a person's spiritual imprint, whereas natural energy did not.
In the Naruto World, no matter the type of Sage Mode, including Orochimaru's cursed seals, none could store natural energy.
One could only draw energy from the outside world after activating Sage Mode and use it directly.
Once exiting Sage Mode, this natural energy would automatically expel itself from the body, leaving behind no trace within the subject.
Chakra, in essence, was the act of imprinting a person's spiritual mark onto ownerless natural energy.
The cultivation difficulty of chakra was relatively low, allowing almost everyone to unlock and practice it.
Most importantly, the chakra one cultivated could be stored.
When a person died, the chakra stored within their body would also return to the world, transforming into invisible natural energy.
Yet, after some tossing and turning by the Sage of Six Paths, it