In another thread, a poster mentioned that trying to understand the Bujinkan organization was like trying to capture smoke. Then he went on to say that some of us ninjers would probably like that analogy. He was right, it was perfect! So, not to get all SKHayesey on everyone but that is kind of the point of ninjutsu. To become a black hole or lead your opponent into one, to become smoke or a bobbing gourd on the seas, or frost landing on a pine tree. So how does one go about that? Never mind the fact that it's hard to comprehend such haiku sounding gibberish, how does one go about internalizing such concepts in their movement? How does one make their opponent think that they hit you or damaged you when they haven't? How does one disappear without disappearing? Not sure, but I know that Hatsumi sensei can demonstrate this ability at will(or no will). I know that his top Japanese Shihan can demonstrate this skill. So why can't the other 99.99999% of people claiming to study ninjutsu do so? That is the question, really the only question that counts in this art and what makes some spend a lifetime struggling in the dojo. Can you do it? For those looking for other things or asking other questions, empires, chains of schools, DVDs and book deals, and other things abound to keep them occupied and irrelevant to those who are searching to answer that one master question. So if smoke can't be captured, can you become smoke? If it can, can you capture it? Great question!