Pain is actually dead bodies resurrected and controlled by Nagato.Pain has 6 abilities and is equivalent to 6 bodies.
The Six Paths of Reincarnation is one of the strongest techniques of Pain in particular and the shinobi world in general was formed after pain volunteered to donate life force and chakra to the demon statue, the power of the six paths of reincarnation is also the The strength of the Rinnegan, who failed under this technique can be said to be many, even one of the legendary tamnin of Konoha, Jiraiya, in collaboration with 2 sages, had to give up before this formidable power, also thanks to this great power. This technique Pain attacked Konoha with only 7 people, knocking Konoha from the position of the strongest village in the five great kingdoms to the 3rd place (after the stone village and the cloud village) in just 1 day, the only person who could The one who can defeat this jutsu is now Naruto Uzumaki (thanks in part to luck).
Pain consists of six bodies, all of which have died before, but because Pain has attached chakra rods all over his body, he is able to move. The 6 Pains include the Way of Heaven, the Path of Atula, the Path of Animals, the Path of Hell, the Way of the Human World, the Dao of the Predators, and the Dao of Outerness.