When we meditate on our body, we meditate on 'the body in the body.' This means that we do not consider our body as a separate object, independent of our mind which is observing it. Meditation is not measuring or reflecting on the object of the mind, but directly perceiving it. This is called 'perception without discrimination,' or nirvikalpajnana.
~~Thich Nhat Hahn (DailyDharma link here)
How nice. Just now, while laying down with Z to put her to sleep, I slipped into a lucid, dreamful state of my own. As I descended further into it, I became aware that I was observing an ever-deepening collection of thoughts; I was observing thoughts that I don't normally observe, but rather that I normally think I'm thinking.
As I returned to my physical awareness, I tried to keep that sense about myself. That is, I simply tried to stay in that state in which I was observing the most primal thoughts that made their very first skitterings across my mind field. Whatever analogy is used to conceptualize what this looks like, one is always left with the same insights. We are not the mind: the mind is of the void. Before mind, is being. Before being, is nothing.