It feels to me that this has a bit of an atmospheric aspect to it, I rather liked it. That last little bit was a tad ominous, raised the suspense a bit.

The only thing I could suggest is this:
“It was Light’s favorite spot to rest, so it was the most comfortable chair in the room.”
This bit’s a bit lopsided to me; perhaps you could shift it around so it looks a bit more like: “It was the most comfortable chair in the room, so it was Light’s favorite spot to rest.”

Overall I liked it. Personification of Light and Dark… this could be interesting.

Oh, I like that idea. It does make more sense too, now that you mention it. Thanks! I’m glad you liked it!