Reverse Black Holes
One time I had a dream that there was a stranger in my house. It was my home that was never known to me until this dream. The house was blackened with shadow, except for the confounding punctuation of apertures that, despite their blinding illumination, did not cast light into the interior of this dream space. Like reverse black holes.
I remember feeling burdened, that I had to figure out where the stranger was hiding. I was confronted with the paradox of losing the intruder to the house of shadows, or losing the house of shadows to a state of wakefulness.