। ॥ ९ ॥
In plain words
You are not the mind, and you are not the breath. Both are inert, with no awareness of their own. And you feel the difference already, every time you say, "my mind has wandered off somewhere else."
Close to the Sanskrit
You are not the mind, nor indeed the vital breath, precisely because of the insentience of these two, and because of the direct experience of otherness in the statement 'my mind has gone elsewhere.'