My belief is that the “trip” is us being able to observe more about our brains than we typically access. My personal experience indicates to me that the “trip” is removing filtering processes the brain uses to remove noise and irrelevant information to the task at hand. When in a “trip” then, it’s more like we are seeing what our brain sees—the things that appear auditorilly and visually are due to neural circuits overfitting and subsequently not being able to filter the misreads and “extra data”.

I’ve always thought of it like a self-diagnostic mode/tool where we get exposed to debug data that our brain normally would filter out.