It is not "seeing" in the same way as visualising things. The way I would visualise assembling a flat-pack wardrobe or something feels totally different to this.

It is hard to explain. The best I can think of is sensing (without visualising) a shape or pattern. You cant actively "see" it in your mind (e.g. if I imagine an apple I can actively see an apple in my mind) - this is more fleeting and defies any focused thought.