Do you mean that the OBSERVATION that there is no mind only happens while looking? Or do you mean that outside looking there is still a mind?
I have been unable to locate a mind in my direct experience. When I look, there is no mind. When I become aware of a sense of mind, I have invariably found this to be comprised of thought and nothing more.
Where do thoughts come from?
Throughout investigating, I do not know where thoughts come from. They are observed to simply be known. There is only thinking. Thoughts are observed as an appearance without an author or predictable pattern whatsoever.
Where are they going?
In looking, there is not a direction that thoughts are going. They are observed to be absent in one moment and present in the next. I observe that thoughts may be known for a few seconds and then disappear thereafter. If there is a grasping at the content, a fantasy, for example, thoughts may last for a longer period of time and increase in intensity. Without grasping at pleasant thoughts or pushing away unpleasant thoughts, thoughts are observed to not have a direction. They appear, fade, and disappear without substance.
Can ‘you’ stop a thought in the middle?
Observing a thought arise with a prior intention of stopping the next thought invariably led to more thinking about the prior thought. Thoughts would not stop. I observed that any intention to stop thinking tended to result in more thoughts. Once the intention was stopped, the frequency of thinking tended to decrease. When looking, there was not a 'me' to stop a thought. There was not a thinker to think the next thought before it was observed.
Can ‘you’ predict what will be the next thought?
Throughout my looking, no. Thoughts arise and their content seems fundamentally mysterious. In looking, any attempt to justify what a certain thought arose was known to just be more thinking. A story of thoughts about why the previous thought arose.
Can 'you' choose not to have painful or negative thoughts?
Throughout looking, no. All thoughts, negative or positive, are observed to be known without choice. Setting an intention not to think negative thoughts was observed to just be more thinking about thinking. I cannot observe a thinker of thoughts. Just thoughts being known.
Can an 'I' be found that generates thoughts? “I think” - What is 'I'? What is the one that thinks?
I am unable to find any "I" that is a thinker. In looking, the "I" appears to be a product of our language. The "I" refers to the knowing of thoughts that arise in consciousness. When investigating, thinker and thoughts collapse into a single awareness of thought.
What is the thinker of thoughts?
In looking, no thinker can be located, only thoughts being observed.
Does the thinker of the thought appear in experience? Can it be found?
There is no thinker in experience that can be found.
Or could it be that the 'I' that thinks is also just a thought?
This is the observation. An "I" appears to be generated when thoughts about "my" life, "my" children, "my" job, (etc) arise.
Do you think thoughts or you are just ‘being thought’?
The observation is that thought is being known. In looking, a body seems to exist, there is sight, sound, smell, taste, bodily sensations, and thoughts and emotions arising and being known in awareness. There is no "I", "me", "my", locus of control, or owner over these experiences. Just the contents of awareness being known.
Is it possible to prevent a thought from appearing? Including the thought 'I'?
From the investigation so far, no. I observe that it is possible to recognize the thought "I" as merely a thought. When this observation occurs, I find a relaxing back into being aware of experience arising and a decrease in mental suffering and physical tension. When the thought "I" is not recognized, there is a story that is observed, a drama, a movie that begins until the "I" is recognized as thought.