Experiencing with Free-Lensing

Free Lensing is soooo hard. I don't even know if I'm spelling it right. Anyways, free lensing is when you hold the lens and detach it from the camera, and move the lens by your hand to focus it. I'm not sure what the point is, but it looks kind of cool if you do it right. I'm not very good at it though. I don't like these pictures because most of them are too dark but I just wanted to document this try.