I think what GP is getting at (somewhat anyway) is the people who say, "Drop acid or do shrooms at home. You'll come out a changed man." That's not psychedelic

I think what GP is getting at (somewhat anyway) is the people who say, "Drop acid or do shrooms at home. You'll come out a changed man." That's not psychedelic therapy. As you said, that's taking psychedelics in hopes of therapeutic benefits. I've seen people say that a non-trivial amount of time in threads like these. It could work, but that's a huge gamble.