I could have posted this in "theories that don't deserve there own thread" thread but I think it does so here goes
I have a theory about, yes, YET again, haki.
what if haki has to do with someones freqoency of their souls or spirits or even of there devil fruits. I mean, everything on the world has a certain frequency, what if using Haki means adjusting your own frequency to that of your opponent. It would explain being able to predict someones movements like that priest guy in skypiea allthough it is not sure it was Haki he was using. And it would explain how rayleigh could stop and even hurt Kizaru. He tuned in to the frequency of kizaru's devil inside. It would also explain why the air trembled at the human auction. Very low frequencies (you might have noticed at parties when standing close to a subwoofer, make the air tremble. So that type of haki might be an extremely low trembling frequency which makes people go unconscious (which actually is possible). So in the one piece world this will probably mean that, the stronger the person, the more resistant to this type of Haki and thus to low frequencies. And when being able to adjust (remember rayleigh saying he could hear objects, could he have been talking about being able to hear there frequencies like Zoro could hear his sword in alabasta?) to someones frequency and his devil fruits frequency or even put it out of phase (This is a technical audio term which is quite simple. A sound is a wave of 360 degrees, if you turn this wave 180 degrees and play it together with the original sound, the two sounds will cancel each other out.) Then the power of the devil fruit will be negated but you are probably only able to tune into a single frequency. . .
What do you guys think?? I already thought this when Shanks showed his Get lost eyes to the seaking in the first chapter. . . Nothing has yet destroyed my theory, in fact, it has only been getting more logical, certainly with rayleigh saying that roger could hear things. . .