Board Thread:Naruto Discussions/@comment-26135923-20150707130017/@comment-5936871-20150709021247

@Chaos Not a clone, but using some of their techniques is fine. It only makes sense that he would use them since his father and Sasuke trained him. As for his namesake, I meant this "Boruto" (ボルト) is the Japanese pronunciation of the English word "bolt". His name is a reference to his cousin Neji, whose name means "screw" (捻子). It may also be a reference to his late paternal grandfather's famed Flying Thunder God Technique, as the kanji rai (雷) can be translated as "lightning bolt."

So him using high-speed lightning techs that he learned from Sasuke and combined with Naruto's would look cool and be original. As we've never seen a Rasengan and Chidori combination before.

I also don't see why transmigrant chakra doesn't work that way, and the souls are chakra constructs at all. They're connected, but not the same thing. Chakra is the energy that connects both worlds, as said by Obito once he died, and souls take some of their chakra with them after death. Also they don't have his soul, but since they're are his descendants, they have his chakra obviously. Hagoromo specifically stated that their chakra was incarnated, not their souls, if that was the case Asura and Indra should have been conscious and appeared. But they didn't it was just their non-conscious chakra that incarnated, their souls moved on to the Pure Land.

Chakra is created by physical energy (generated by the body) and spiritual energy (generated by the mind's consciousness, AKA the soul). So souls are directly connected to chakra, but they're not literally the same thing.