So I ask you: What are you? You don't know; there is only “I don't know.” Always keep this don't-know mind. When this don't-know mind becomes clear, then you will understand. So if you keep don't-know mind when you are driving, this is driving Zen. If you keep it when you are talking, this is talking Zen. If you keep it when you are watching television, this is television Zen. You must keep don't-know mind always and everywhere. This is the true practice of Zen.