Board Thread:Theories and Speculation/@comment-1512913-20180917223942/@comment-1872728-20180930084828

Elveonora wrote: The only problem is Yamato and Kakashi's clear demonstration that Earth and Water together produce the Wood. Maybe Hashi used Mud Release and Wood Release simultaneously, which is why Yamato and other Hashi Cell peeps uses it simultaneously. This is how I explain it to myself. LoneNinja wrote: None elemental techniques fall under Yin or yang. I do recall it being stated somewhere in the manga AGES AGO, I just can't remember the chapter number.

But for me, Yin and Yang Release is not really a "release", it's more of the state of balance between the Physical and Mental Energy within the chakra, which is why everyone that has chakra should have them.

So for genjutsus where it's creating things out of nothing, it has more Mental Energy. For healing jutsus, it's giving life to already existing things, so it has more Physical Energy.

For the people that are explicitly stated to have these releases, it's probably because they're really efficient with it. For example, Hagoromo that does it so well he created living creatures.