Board Thread:Naruto Discussions/@comment-30381420-20161031234712/@comment-30381420-20161102083557

So what is it really? Is having one eye grants the user half of its power (such as the Deva, Animal, Asura Paths or other the three abilities), or is having one eye enough to gain all of them?

From what I believe,the Rinnegan acts almost like the MS. You need two of it to access to its full potential (such as activating Susano'o), but even though you still have one eye, it's still a power Shinobi's wanna gain; so like the MS, it still contains different abilities in each eye--like the right or left eye contain the Asura and Human Paths, while the other grants you access to the other four or something of the likes.