Urgh. Art comes from artisanship. Not many people have this in their mind when talking about "art". It has no inherent deep meaning. A cook creating a delicious meal also creates art. What is the "meaning" of the meal?
Just because someone expressed their feelings or tried to convey any meaning through the craft, does not make it a work of art. A diary would be art, if applying this logic.
There is the trope of the death of the author and I agree with that one. It basically says, the creator's interpretation of their work is no more valid than any other interpretation.
Sure, there is a tiny subset of art, where the creator actually tried to hide some meaning in it. Circumventing censorship comes to mind, that one has a very long tradition actually. Or often trying to put extra cleverness into the work that is not immediatly noticeable.
So, yeah, much of art discussion is too intellectual, and also too emotional. Pretentious. And a case of "The Emperor's New Clothes". No one wants to admit stupidity. So if acclaimed "artist" does wierd things or literal nonsense, a flock of art appraisers praise it, not taking into account the face value of the thing being garbage non art. The later works of Jackson Pollock come to mind. He painted "normally" first, but later did those dripping "art". After he was established, his stuff was art by definition, even when looking like random doodlings. It is like the fame of those Kardashians.
And often enough, acclaimed artists lose touch with reality and think what they do is art, just because they did it. Or because they put emotion in it. And if people do not understand their art, or dare to interpret it differently, it is the people's fault and not their own.
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The Stanley Parable is a very clever 4th wall breaker game exploring the various ways a certain scenario could end, by looping the player around to try again differently. Since the game is all about easter egg hiding, no doubt the creators hid all sorts of things to be discovered or be interprated.
But applicability is a thing. We humans like to make associations where there are none. Simulacrum is term that describes part of the phenomenon. And it can be applied to works of art as well, when you find meaning in it. Sometimes the creator even hid that meaning in it for you to find.
But a creator should not whine, if the meaning found is not the meaning that was put in there. If that was the intention, the creator failed in that task. If the artisanship is well enough, that does not really matter, but it might hurt the ego of the artist.
Practically we could say that there are two skills. The art skill to make the art. And the skill of hiding meaning in such a work. Actually, there is a third skill, which is communication based and would descibe the ability to formulate the hidden meaning in a way that people could understand it. And my guess is, that many a artist forgets the third one and is hurt if people just do not understand them through their work.