There's undoubtedly shared aspects of reality and I don't think anyone seriously thinks psychedelics can produce water in a desert. I think the main benefit is

There's undoubtedly shared aspects of reality and I don't think anyone seriously thinks psychedelics can produce water in a desert. I think the main benefit is psychedelics show you a different mental perspective on objective/shared reality and can shift your ego/identity in a radical way temporarily. Reality is "subjective" in the sense that your beliefs/identity/ego/brain-chemistry make up a huge part of your experience and those aspects can be altered dramatically. Telling someone serving a life sentence that could actually be useful to them. You see a lot of them turn to religion. That being said I eyeroll as well when someone says we're probably living in a simulation, but there is a lot we still don't know lol