Board Thread:Theories and Speculation/@comment-25576506-20150406220206/@comment-25549954-20150407170416

I think Asura's chakra mode is the result of his training and Hagoromo did mention that chakra bloomed inside his body later in his life, so it must be unique to him just like Sharingan was unique to Indra at that time. The power or role Asura received is probably the tailed beasts and responsibility of spreading the Ninshu, which is why Indra got jealous. We can see Asura's battle avatar which is just like Naruto, I think it is probably Kurama who was little child (chibi) who was transformed into that mode, along with many Truth-Seeking Ball, I think the tailed beasts also helped him and gave him some chakra. I always thought Asura was Yang and Indra had Yin from birth but Asura received yin-yang as a gift from Hagoromo and Indra didn't and that's why Sasuke got Rinnegan so Yin-Yang for him and Naruto also received Yin-Yang so they were equal this time.