There are multiple kinds of thoughts. Some thoughts are yours. You can feel them, because they arise as a response to will, in the same way your arm rises in response to your will.

Then there is another modality of thought. It is the "surfacing thoughts". These can seem intrusive, and "not like you". But in reality they are bubbling up from your subconscious self as a response to the stimuli you are subjecting yourself to. Usually, it is responses to "willed thought" or physical situations. "This rain sucks!" or "It is cold as hell today" are examples of "not willed thought", but thoughts bubbling up from the subconscious self as response to stimuli.

You can test this by mentally asking a question. Then you simply sit and wait for a "bubble thought" to answer the question.

Or you can test it in writing. Set out to answer a question in writing which you do not know the answer to. Initially, you pose the question (action) then your "bubble thoughts" complete the reply as you write.

It is how this post was made. I did not know what to write, before it was written. It was not mere transcription, as it would be if it was simply "received". Instead it is "co-authored" by the conscious and subconscious self.

The real question of course, is "where is this self that is willing and bubbling actually located". And the answer is everywhere and nowhere at all. It has no location, and yet it is everywhere.