I think this touches on the heart of the argument. When you view a painting, say, don't you try to read it's nature? Much of the mechanism by which we do that is intuitive. Intuition isn't the same as whimsy, it can penetrate things and reveal a truth, which might be a purely visual / emotional one. It's not about pleasure, it's about recognition. With experience, you learn to trust your own intuition and this is certainly true of how we fully access art. There's a test, also, which is that others might share your perception of a given work, and this can be touched on verbally as a reinforcement. Note that I said perception, which isn't the same as opinion - opinions are out of this argument, and are pretty pointless.