This technique is based off the movements of a fly. When there’s a fly buzzing around the room you can track it with your eyes but every now and then you lose sight of it. This technique works on that principle. Its not that the limbs are moving fast but they change directions so suddenly that opponent lose sight of them. When fully mastered user can even perform this technique on their own body making it appear as if their body is splitting into pieces and turning into the wind.