Board Thread:Theories and Speculation/@comment-1512913-20150221101637/@comment-25549954-20150302181257

LegionZero wrote: Yes it isn't the eyes but there is no change in the chakra network. There is nothing to even imply that. Yes the chakra itself changes in the Sharingan, but the network stays the same. Kakashi also had Uchiha chakra because he had Obitos eye. Technically-Why did I think chakra network change is the cause for change in eye pattern for a Mangekyou because when you think about it, it is not change in Uchiha chakra, not just chakra increase but change in network for flow of chakra. Actually I just remembered why I mentioned chakra network in the first place. I think Nagato controlled the dead people with chakra receivers implanted into their tenketsu so that he could control their flow of chakra and it mirrored his own, he transmitted his chakra and so Rinnegan manifested in their eyes. I believe if the chakra flows in specific circuit of network, may be they could Summon, do Shinra Tensei etc each Path had chakra receivers pierced in their body, nose, ears and what not. Similar to how Rinnegan manifested in eyes because of that change, I think it is similar case for Mangekyou Sharingan that is, change in chakra network.