I’ve never experienced anything spiritual under mushrooms or any type of drug. It can be achieved with a clear, pure, experience through inner work, detaching from narratives, and deep meditation.
Discussion
My experience of psychedelics is that they deconstruct my experience. Part of that is (sometimes) separation of an observer from my thoughts and my emotions. After I discovered what that was like, it made it easier to detach in normal life. Perhaps I could improve that skill with meditation, but so far I haven’t.