The Dream Is Not a Pipe, Right?

In Dante's ninth canto, a messenger from god appears in hell to open the gate of dis which is barring the divinely ordained wiy of virgil. And dante the approach of this messenger, an angel, is preceded by a great storm described in the following manner. So that was like a herald of the arrival of this messenger. It's a very powerful scene. And i thought about this dream with this thing with the four storms. And i finally remembered this painting by magrete. This is not a pipe, right? Well, what it means is the representation is not the thing. Even perception is not the thing."