Board Thread:Theories and Speculation/@comment-25417671-20141203151145

As we know this is a technique of Katon of highest level. And has as its main use the black flame, which they say is "Hellfire", it is also said that they are as hot as the Sun. The flames are able to burn mostly everything through your path, easily outperforming regular techniques of fire. Insatiable flames of Amaterasu can have its way manipulated that I believe it is through the Yin release allowing it to be used for both attack and defense.

Since the Yin release deals with spiritual energy and imagination. These techniques are geared mainly to mind, and their own shadows, which does not have mass, only the form. The abilities of the Sharingan fit in the concept of Yin, which is associated with the genjutsu and perception of form. While holders of the Sharingan can easily copy techniques, that nature should be responsible for play them. Yin release must also be related to techniques involving seals to chakra store. 