One day, I thought to myself, “If I walked into a pure white room, and there was a cube hovering about a foot above the ground, rotating, I would somehow find that scary.” I told my sister that, and she thought it would be scary too. I don’t know why that’s scary, but it is… 
It’s funny, today, I would be overjoyed about this, because It would make me Lucid. 
I think it would be scary too… Probably because of the cube defying the laws of physics. As well as the white room seeming to me like what you would stereotypically find in an asylum. White rooms with padded walls…
Yeah, that would be freakish.
Like Im trapped in an asylum and seeing stuff 
Mostly I think the square part of it all (The room, the cube) would be the fact that it represents walls, walls trapping my inside.
Ya… also if I walked into a pure white room and I saw a video game character dancing…
Pure white room eh?
Well,you might find it scary because your subconceus realises that it is impossible for something of a pure white to exist,it also gives the effect of blindness,am i right?
But the cube and the dancing character would be there to make you realise you aren’t blind.But still gives you the effect of being blind,and seeing the cube with your third eye.
Now what i just wrote may be stupid and illogical…just trying to be a smart@$$ 
But i’d freak out too…the visual silence of that room…it’ like you would have entered a building at night…can you feel the silence?
Well in a dream like this you would be able to see it.
I think…