Hello everyone, so I felt like watching an older Naruto Shippuden episode today and so I chose #55 (the one where Kakashi and Yamato start teaching Naruto nature manipulation). There was one part that I had totally forgotten about in it where Kakashi and Yamato tell Naruto that they won't teach him on the topic of "light and dark manipulation" yet because he wouldn't understand. I tried to look up just what light and dark manipulation is because i've never heard of it since that episode. Does anyone have any idea as to what it is, how it works, and how it is done?