Well the original commenter I was responding to had a great insight, which was that even if the person used psychedelics it would be difficult to compare their experience to my experience and even know if they are similar enough to be useful in a therapy setting.

In essence, if everyone's experience is so different anyway, why not just look for someone who has opened their mind to the experience and maybe studied it or worked closely with other people who have. A mind open to possibility and understanding could be more in line with what I would want, rather than a mind that deals in absolutes like "there is literally no way anyone can know what the juice tastes like..."

I see what you are saying though. Psychedelics are hard to imagine without having tried them.