Board Thread:Wiki Discussions and Support/@comment-26010916-20150211152912/@comment-26112212-20150211164212

@Archangel489:Yeah it's possible that Truth-Seeking Balls could be related to Tailed Beast somehow because the Tailed Beasts are also made of Natural energy. The Truth-Seeking Balls are said to be product of Yin-Yang release.

@GodlyHades: I think you are misunderstanding something it was indeed 9 tail beasts chakra that was for the RSM it was given to him by all the tail beasts during the war, and the tailed beasts assembled before Hagoromo in his subconscious realm because of the chakra he received, surely not the entirety of all the tailed beasts resided in Naruto they are chakra monsters after all, only some fractions of chakra was enough for all those techniques. When Naruto fought Kaguya you can see in panel that all tailed beasts were helping him and communicating they were in his subconscious realm