Totally agree with all points except 3. It has nothing to do with spirituality. It depends on your view of the world. If you believe in something which is most likely not real and you are tripping on LSD, the chances are that you gonna see it and since you were kinda spiritual person from the beginning it will only enhance your believes. Keep in mind) If you want to stay hardcore scientist who will try to be objective no matter what, then LSD will not take that away from you!