Sorry to hear about your friend... Yeah...the hallucinogens are powerful medicine, and shouldn't be undertaken, lightly. Acid has a weird pyramiding effect, where people need to take increasing doses to maintain the same levels, when used continuously. I knew someone like that in College, as well. The guy was undeniably brilliant, studying Cognitive Science, and his grades didn't seem to suffer, while I knew him. But long-term, none of that can be good for you. Dr. Drew claims long term brain injuries result from that kind of use, with the synthetics. I hear the fungi aren't so bad in that respect. Nonetheless, it's been many years.