I'm one of those people who doesn't know how to relate to art - apart from being interested from a historical perspective as I do enjoy history. It's not that I dislike art, it's just not really my thing. I am not a creative person in general and have a hard time understanding what it's like to be artistic in any way. I am sometimes jealous of people who can draw well, mostly because I have to depend on the artists on etsy to draw the likenesses of my dogs and cat.

If I were a therapist, I'm not sure how I'd react to my clients' art but it would probably be disappointing. That would especially be the case if the client was hoping I would be able to understand something about them based on their art. It seems like maybe that's what you were hoping for?

If so, I guess the best analogy I can think of is that art is a language and some people can't understand a word. That's not a commentary on the language, it just means it can't be used to communicate.