Board Thread:Naruto Discussions/@comment-33156423-20170923231447/@comment-1512913-20170927095819

Agree, chakra and soul are different. The Tailed Beasts have souls of their own, made by Hagoromo. A piece of the Jubi's chakra was just used to make each of them, but the rest is their own. Kaguya's soul remained within the body, Gedo Mazo.