Board Thread:Versus Debates/@comment-35155071-20180330190048/@comment-34752936-20180404150502

Genjutsu is taking control of an opponents chakra system and using it to induce illusions, for mind control etc.

It can be done in three ways we have seen Music (not "sound"- all sound-based genjutsu we have seen was musical in nature), the Sharingan which sems tohave hypnotic properties, an Regular, which is seemingly using you own chakra for that purpose.

Genjutsu is just very advanced hypnosis. The idea that music can hypnotise you is not that far fetched, same with the Sharingan which is an unusual eye technique. I'm not sure if either actually requires ending chakra into the enemy, even if both are "charged" with chakra themselves. HG Pain has, let's face it, already fallen victim to a Genjutsu AND HE DIDN'T ABSORB IT WITH THE PRETA PATH.

But like I said, I'm not sure if music chakra like that which beat him actually sent chakra into him.