Board Thread:Versus Debates/@comment-33068632-20170910112454/@comment-30323490-20171223160805

Again, it's not a coincidence that Hagoromo showed himself to Naruto and Sasuke right when Naruto finally possessed chakra from all of the bijuu (hence awakening six paths chakra) and Sasuke received Hashirama's cells (awakening six paths chakra as well since he was an Indra transmigrant and Hashirama was an Asura transmigrant). These 2 things clearly triggered and helped Hagoromo establish a connection with them.