Lying in dream-sand, arms to my side, No white noise or dark matter hymn [to keep me up at night] Like fingernails carving red lines Into my palms again:
The night-song sings; Sinew and bone holding my heart closed, [Like muscle and marrow and other things] That nobody sees or knows:
"The light is dim", could be a place of comfort, could be the home of anguish... By using these repetitons, you take us on an interesting journey, we're not too sure on which side (day or night) we will emerge again. Beautiful words sir, well done!
The atmosphere this creates is ominous and unnerving. You've used the repetition of the first line at the end before, but somehow it always captures a different mood depending on what you're trying to convey. It really /feels/ like a nightmare, like the night suddenly became sentient and wants to make you miserable (especially in that last few lines). I love the image of you "lying in dream-sand" as if you're washed up on the shores of sleep itself and the dream-waters won't embrace you. Wonderfully visual. I like that each stanza seems to get shorter and shorter (I'm going to assume you did that on purpose) until the final conclusion, echoing back that unsettling dimness. I love it. Great work!