"In the ancient age, when even the concept of Chakra did not exist, people were already waging wars against one another. Yet humanity's conflicts had never affected an even more ancient God Tree----
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"Humans regarded the God Tree as a pillar of the gods, worshipping and revering it----
"One day, the God Tree bore a fruit that appeared only once every thousand years----A princess plucked and consumed the forbidden fruit of the God Tree in order to win a war. Her name was [Kaguya Otsutsuki]----
"Kaguya gained the power of the God Tree and became the first person to possess Chakra, single-handedly bringing an end to the chaos of war----And Kaguya's children were born with Chakra----
"The God Tree, robbed of its Chakra Fruit, began to rampage in order to reclaim its Chakra. It became the natural calamity known as the [Ten-Tails]----
"The one who stopped the Ten-Tails' rampage was Kaguya's child, [Hagoromo Otsutsuki], the founding ancestor of the Ninjutsu Sect----He later came to be known as the [Sage of Six Paths]----"
"Kaguya----Ten-Tails----Sage of Six Paths----"
Sasuke Uchiha stared at the stone tablet and murmured to himself. At the side, the projected forms of Wu Yu and Karin also borrowed Mysterious Kaguya's Rinnegan ocular power to gaze at the tablet, deciphering the complex Otsutsuki script upon it. With the same ocular power, they naturally saw the same content Sasuke did.
Wu Yu thought, No wonder Madara called Naruto's Sage of Six Paths Mode something like "Six Paths Senjutsu Blooming"----The other thing that could bloom and bear fruit was the God Tree, wasn't it? The nine Tailed Beasts merging into the Ten-Tails was one way of blooming----The nine Tailed Beasts mixing within a Jinchuriki was another way of blooming----
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A poem says: Attain the Six Paths' Dao