Board Thread:Naruto Discussions/@comment-7292165-20141223203834/@comment-25065646-20141227204709

I do think presuming any given technique to be either exclusively Yin or exclusively Yang UNLESS it is stated to be so is taking the matter too easy. We have to take into consideration that literally EVERY jutsu out there might have its own unique ratio of Yin and Yang (similar to how Bijudama was specifically stated to be 80% positive and 20% negative, which may or may not be equivalent to Yin and Yang). For all we know, Genjutsu could be 100% Yin/ 0% Yang, while Medical Jutsu may be 100% Yang/ 0% Yin. It could however just as well be 96%Yin/4%Yang for Genjutsu (or any other plausible ratio as long as there's MORE Yin in it than Yang), and anything in between for other jutsu types... Comprehensibly, it is tempting to assume the nature of a technique simply by observing its 'conceptual' functioning. It would seem very reasoned to think that e.g. every jutsu that 'makes some inanimate matter come to live' could be associated with Yang (making Konan's Paper, Sai's Ink and maybe the hair or cloth manipulation techniques or Deidara's clay fall under this category) as this application may be based on the 'physical energy' idea of healing and strenghtening/reinforcing the body. Likewise, one could imagine all sealing techniques being Yin oriented, as they deal with the 'manipulation of chakra' in the broadest sense. However, we have to keep in mind that it is just as possible for all techniques to have yin AND yang by default, with an excess of either one making it ORIENTED to one of them. Personally, I think that the duality of Yin and Yang and the duality of mind and body are NOT necessarily one and the same: spiritual energy may be an ASPECT of yin and physical strenght an aspect of yang, but it is not that 'if you have physical energy you automatically possess yang energy'. If that were the case, any shinobi could perform Yin-Yang release by just molding chakra. However, all known (stated as such) 'true' Yin-yang techniques (a.f.a.i.k. namely Banbutsu Sozo, Izanagi, Gudodama) are more akin to an elemental Kekkei Genkai kind of skill, mixing Yin release and Yang release together to produce Yin-Yang chakra. A release technique is the result of applying Seishitsuhenka to your chakra, granting it the properties/parameters of one element. In other words: to produce Yin release chakra, one would have to give his chakra, which is composed of mind AND body, the properties of Yin. This special Yin-chakra is then suited for application in jutsu that involve the mind in the broadest sense. You do NOT creat Yin chakra just from your spiritual energy, as you need both spiritual and physical to even mold chakra in the first place. 'True' Yin and Yang energies are more like some cosmic elements/energies, though they may not fit into the compensative system of the five natural chakra elements. Summing things up: As someone who might have thought about this stuff in the past a little more than it may be healthy, I'd advise you not to simply relate every non-elemental jutsu to either yin or yang release category just cause its user possesses said elemental affinity.