Not the OP, but some schools of buddhism, e.g. gelungs, describe two types of meditation: static and dynamic (my own terminology). The static one is sitting still and sharpening your focus. The end goal is the state when your mind naturally snaps into this fully attentive state - samadhi. But that's a weak result, and dynamic meditation is ability to retain this state no matter what you're doing or even thinking. That's vipassana. There are decent books about the history of buddhism and dzogchen that explain this better.
