Try a little experiment. What thought is going to come out of the mouse hole?
Try it now. Well? I had to wait for quite a long time before a thought came in. Exactly. As long as you are in a state of intense presence, you are free of thought. You are still, yet highly alert. The instant your conscious attention sinks below a certain level, thought rushes in. The mental noise returns; the stillness is lost. You are back in time.