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Qualia and the world of forms.
I don't think anything like this exsits in the sence that traditional phylosaphers might. Lets take the mary's room thought experiment.
Mary is locked in a grey room. The walls are lined with books of sientific information about the color blue. The wave lengths, the structure of the eye which is able to reseve the color, ect. But mary never see's the color blue. The "qualia" of blue, the platonic form or esence is not in that room. Then the door is unlocked and mary can leave the room and see the sky. Does mary learn anything new by looking at the sky? Is somthing new experience?
And then this is usually used to say that there must be some form of bluness witch all experiences of blue point towards. Or it gets used to say, "sience will never be able to know what blueness is. It is non material."
The problem with mary's room is that reading about blue will not invoke the feelig, emotion, or experience of blue in a human system. The experience of blue is caused by photons of a certain wavelength hitting the cells within her eye, and then the brain system whitch responds to that stimulus. The system witch then makes responses to the eye. Perhapes the person love the color blue. Perhapes not. Perhapes blue is teriffying. Sience allows us to try and understand the way in which this resposce happens, why it happens.
Forms are socialay constructed catigories. A great way to see this is in the exsistance of inbetween objects. Take a chair, and take a couch, each of these has a slightly diffrent but seprate shape. Mabye couches are usually more cutioned than chairs. Mabye because i've started conpairing these two ideas, your imagination of the chair is skinny and the couch is coushy. The idea of a coushy chairs becomes more distant because we've drawn a line in the sand. Now take a chair and a couch and combine them into something new. Have we just created a new form? What do we call this new object? The problem is that language guides what the "imutable" forms are. Change the language, change the cultural tradition, change the "imutable" form. This relates directly to morality.
The way in which we catagorize the world changes our perception of what the world is. Mix up the edges of the catagory and we change what something is, at least perseptually. Somethings true form is its self. A tree is not pointing to a form called tree. The tree is itself. Reality is squishy. Genetics is squishy.