। ॥ ४ ॥
In plain words
You are not the senses. The śruti speaks of them as instruments—things that are used. You are the one who sets them moving, separate from them. The agent cannot be the instrument.
Close to the Sanskrit
You are not the senses; there is that śruti which speaks of these by way of instrumentality. You are the impeller, separate from them; the agent could not be the instrument.