The fact that you might just be having an episode of impaired cognition does not actually enter your brain. It depends. I agree that it should. That said that

The fact that you might just be having an episode of impaired cognition does not actually enter your brain. It depends. I agree that it should. That said that realization doesn't make it less spiritual. Experiencing a different reality, seeing through different eyes, isn't that the quintessential spiritual experience? We believe what we see. If one never experiences a different point of view, one might continue to believe her limited window to the world is the truth. Experiencing other realities can help subjects realize how subjective things are. How to form a perception, imaginary fluff is added to fill the gaps. Like your comment. It's not a silver bullet. One has to be curious, and brave enough to second guess the ego, which is probably one of the most challenging things we face (and might define how and how well we can last as a race). But it doesn't do us any good to underestimate the spiritual power of psychedelics.