So, Pain's speculation was not wrong in a certain sense.
The Jinchuriki, although they are the sealers of the Tailed Beasts, could potentially become mere vessels for the Tailed Beasts if not handled properly.
After all, no matter how you put it, the Tailed Beasts are merely conglomerates of Chakra.
Nagato had been examining the Demonic Statue of the Outer Path for a while, he sighed and said, "The idea of gathering all nine Tailed Beasts is unachievable now; we must change."
"Demonic Statue of the Outer Path... you say, if the Tailed Beasts can be sealed within a human body to become Jinchuriki, then could this thing, the vessel for all the Tailed Beasts, also be sealed inside my body?"
