Board Thread:Naruto Discussions/@comment-25041366-20140616022630/@comment-5941409-20140616043851

The powers itself is of Yin Style and Yang Style, and the symbols are more or less the symbols for Yin and Yang there. As for Naruto tapping into the power of it, he does not have to be in Kurama Chakra Mode for it for when he got back up he saved Might Guy by utilizing his chakra through the symbol. With that said, its safe to assume as in Naruto's page here, he now has Yang chakra nature along with his Wind chakra and any others that comes with the Tailed Beasts.