Board Thread:Wiki Discussions and Support/@comment-26010916-20150211152912/@comment-26112212-20150211174632

Hagoromo appeared before Naruto because Hagoromo shared his chakra among nine tailed beasts because of the prophecy that there will be time when the beasts must unite, Hagoromo appeared before Sasuke because Indra+Asura (Hashirama's chakra)= Hagoromo's chakra. It is just like how Kushina transferred some of her chakra to meet Naruto in subconscious. Hagoromo appeared in physical realm because Hashirama(Asura's reincarnation) tried to heal half of Madara's body(Indra's reincarnation) and Hagoromo also explains how he came here. He was talking about the requirement that he needed past Kages to do the combined summoning technique. The tail beasts were communicating and no, it was actually all the tail beasts portion so yes his mode is also made from tail beasts recall that when Hagoromo talks about dividing the Ten-Tails power 9 magatama were shown, and reall when Naruto was shown in RSM 9 magatama were shown, it also indicates and relates to Madara and Obito (because they were Ten-Tails Jinchuriki the Ten-Tails being the culmination of 9 tailed beast having 9 magatama markings on back), I have seen Uzumaki crest on Naruto's back in The Last: Naruto the Movie and no 9 bold magatama markings on back in any other mode of Naruto except in his Six Paths Sage Mode.