The Importance of Visual Content in Dreams

My dad has always been a very verbal person. And so he had sort of the same experience that I have with reading or with listening to audio plays, which then goes right back into the whole thing of hearing a voice without knowing what it looks like. He's not really visualizing anything. There's like an idea of what's happening, but that's very different from a visualization. Some people are extremely high on the sub vocalization and other people say this is just a difficulty of linguistics. All brains do the same thing, just having a hard time describing to each other in words.