Earlier quoted context omitted.
It's not particularly irrational or mystic. That experience he describes is quite common for people who use mushrooms a few times. What is the difference between you and a chair? What makes your brain so special, and why is it so important that it continue to exist? Why shouldn't a stick held in your hand be considered part of your body (in fact, one of the big differences between humans and most animals is that, unc…
I'm not against philosophical questions. I myself had them while on shrooms. Still, there is no reason whatsoever to refuse materialism due to a mushroom experience, that is why I called it mysticism. The fact that your brain state alters because you consumed a tiny amount of a certain chemical should be proof of materialism. The statement that "everything is connected" is meaningless without defining what you mean b…
Modern science, understandably, does not know that the human constitution is comprised of more than the physical body.
They don't know this because they don't have the instruments to detect the other bodies (such as the astral or etheric).
So, all of their efforts in research are pointed to determine the effects in the physical body. Actually, when taking psychedelics it is the astral and etheric body that is being stimulated (the cause) with effects seen in the physical body.
If you truly care to learn more about this I suggest Astral Dynamics by Robert Bruce. You can learn conscious separation of the astral body from the physical body. There's even an exercise that will allow you to determine if the whole experience is objective or subjective - you go into one room to project and in another room someone writes a number on a paper and tapes it against the wall. You quickly project into the room, read the number, come back to your body and go see if you were right.