Well, it's another comments section where people don't understand or outright ignore symbolism. Music is the bridge that connects them!
This is a sweet slice-of-life moment for our heroines. Mitsuki's dream collects her recent worries about distance, being unable to reach Aya, and her avoidance. And it takes the shape of the album Aya is sleep listening- the song title "Stars," the Album title referencing Astronauts, and the Zebra from the album art (Sorry, it's not Narita).
This dream ends with Mitsuki reaching Aya, but the chapter ends with Mitsuki crushing Aya while she sleeps. I'd say this is another step towards communication, with the reminder that it's not ready to happen just yet. Perhaps prophetic that it's coming soon!
Is Hum a deep cut? The hit single "Stars" was all over the radio and MTV when it came out in 1995. Every modern rock radio station had it in heavy rotation, the music video was regularly on MTV, and it made it onto Beavis and Butthead. Of all the grunge and post-grunge bands, I think Hum is B-tier famous.