I have this. I can imagine a friend, or an object.
I can imagine the colour and form of them, but not quite see it, if that makes any sense. It's really hard to explain!
So if I think of my son or my daughter now, I can get flashes of them. Of how they move. Their face for a split second, maybe their smile or another expression for a fleeting moment. But it's more like the concept of their face, than an actual picture of it.
I can't see them.
I'm more comfortable with imagining the shape of a cube, than the colour of it. I can sense the shape in my brain without actually seeing it visually in detail.
I can kinda see things but only for a very fleeting moment, and not in any detail.
I did once or twice when I saw young, see something in my minds eye. I was amazed and had the feeling that if I really practiced I might be able to do it more often. But it seemed like a lot of effort, probably. I thought I was special for seeing those couple of images haha! I thought no one else could do it.
I had no idea I was missing out. I feel a bit sad about it tbh.
I do dream.