In traditional Buddhist terminology, there are three aspects to meditation. The first is stilling the mind. The second is samadhi (balance/ concentration), and the third is vipassana (insight); they are often thought of as sequential.
In our practice, they’re not sequential; they arise together.
You can’t still the mind with the mind. You can only still the mind by locating it within the body. This body, the body of awareness. And this body has no boundaries. It is one piece. It is like space.
Yet even so, we need to have actual experience that when we sit, body, mind and all beings are this one piece samadhi. It’s not enough just to believe it. When we sit together, we actually experience this, and this felt experience can gradually seep out to all existence, like a hand moving through water, infinitely.
And this One Piece is Zenki, full dynamic functioning. It isn’t static in any way. It is vibrantly alive, and all its facets are free to express and experience themselves, through this sitting. And this is insight.