Yes most people don't realize their lives are lived completely in their head, constantly parsing a verbal stream and acting on it.
People believe the brain is the center, but it's really only a peripheral, more of a GPU than a CPU. When shut off, we operate just fine. It's easily to walk, observe, eat, cook, etc. without thinking at all and that's a good thing.
Many people get scared to be compared to vague concepts like "the vast, non-thinking masses," however, non-thinking is a mode to be switched in and out of with "thinking."
Thinking is an activity, like digging. We do it as necessary, but just like we shouldn't dig all day long, we shouldn't think all day long.
Many psychedelics as well as other consciousness-shifting experiences, like facing extreme fears, traveling, staying up all night, etc. will help put these concepts together, but few will do it on their own.
We could all benefit from more and gentle shifts in our consciousness.