If you look at Polaris

still the Pole Star leers down from the same place in the black vault, winking hideously like an insane watching eye which strives to convey some strange message, yet recalls nothing save that it once had a message to convey. Sometimes, when it is cloudy, I can sleep.

you might see The Colour Out of Space,

The colour, [...] was almost impossible to describe; and it was only by analogy that they called it colour at all.
[...]
No watcher can ever forget that sight, and Ammi stared blankly at the stars of Cygnus, Deneb twinkling above the others, where the unknown colour had melted into the Milky Way.

and hear The Music of Erich Zann.

Yet when I looked from that highest of all gable windows, looked while the candles sputtered and the insane viol howled with the night-wind, I saw no city spread below, and no friendly lights gleaming from remembered streets, but only the blackness of space illimitable; unimagined space alive with motion and music, and having no semblance to anything on earth. And as I stood there looking in terror, the wind blew out both the candles in that ancient peaked garret, leaving me in savage and impenetrable darkness with chaos and pandemonium before me, and the daemon madness of that night-baying viol behind me.