Nice rhythm here. Don't diss your work in the description, I enjoyed reading this! I appreciated the third grammatical sentence: "Inside one, dark and empty,/while the other fills with beams/of moons and starts and sunlight,/and no myst'ries, left to dreams." The flow and sounds were very appealing. Also, there was a slightly different take on the glass houses thing, at least that I saw. A more positive take, I could be wrong though. Keep writing!