You are not the physical sensations you experience. Sights, sounds, touch, tastes and scents all arise and pass away, and when observed accurately, are not the thing you call “me”. Thoughts are just sensations too, and come and go in the same way as external sensations. Without awareness, it's easy to identify with a train of thought and to believe that the stream of thoughts arising and passing away is “me”, but it's not.
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