There are six paths in Buddhism, Kishi incorporated these into the sage of the six paths.
1st path. Deva path, the main pain, Tendō (main Pein) this path allows the set user to ,manipulate attractive, and repulsive forces.
2nd path. Asura path, Shuradō, grants user ability to summon mechanized armour.
3rd path. Human path, Ningendō, (the path that Obito refers to). Grants the user to remove the soul(death), or read minds.
4th path. Animal path, Chikushōdo, user is able to summon various creatures.
5th path. Preta path, Gakidō, user is able to absorb an infinite amount of chakra.
6th path. Naraka path, Jigokudō, grants the user two abilities interrogation, and restoration(bring other pains back to existence, by using the king of hell technique)
I hope this answers your question.