There is absolutely nothing spiritual about taking LSD or any perception altering substance for that matter. It is just your wonderful brain getting a free pass to indulge itself and all the blessed litter neuro-transmitters that normally sit around all day twiddling their thumbs waiting for you to go to sleep...and dream.
The human brain is more powerful than all the philosophies, theories and ideas in the world rolled into one. Take moving pictures for example. Show the human brain at least 15 sequential still images and voila! Hourney to the Moon, The Birth of A Nation, Citizen Kane, 2001: A Space Odyssey, Weekend At Bernies, whatever you like. It's your brain!! The pictures are NOT moving. Your brain is moving them. And that's without drugs. Just looking at stuff.
The same things that were being said by people about acid in the sixties were said by people about MDMA in the eighties. They even called it the second summer of love for chrissakes. Now most of us are quite happy that we danced and smoked and drank and shagged but didn't go irretrievably crazy. If you like to think getting stoned is anything more than that then you ego has been far from death, Jim. In fact, only an ego would place more importance on a chemical reaction than it's due. To quote Bill Hicks " It's no more a miracle than eating some food and then later a turd falling out of your ass"
Anyway.. what was I saying?
Hicks, btw, was speaking of babies, not drugs, when he used that line. In fact Hicks loved cocaine and did some great bits about weed and 'shrooms, so it's a little lame to use Bill to defend your view. Just saying...