At creation's core, mad Azathoth writhes,
Blind and senseless, as chaos thrives.
Demons flutes and horns play,
In endless disarray,
Should its dream cease, all life dies.
A limerick is built to land on a joke. Five lines, a rhyme scheme that winds up and releases, a punchline waiting in that last line. This one winds up the same way and releases into "all life dies." No joke. No wordplay twist. Just the plainest possible stakes, dropped into a form that trained you to expect something funny.
That's not a failure of the form, it's the point of using it. Azathoth is Lovecraft's blind idiot god, a mindless, dreaming thing at the literal center of the universe, kept company by demon flutists so its dreaming doesn't stop. If it wakes, or the music falters, existence ends. There's something almost absurd about that premise, a god too oblivious to know it's holding creation together, and a limerick's light touch actually suits that absurdity better than something somber would.
The art plays it straight anyway. Swirling dark forms, instruments without visible players, no face on Azathoth at all, because there's nothing there to give one. The chaos isn't menacing so much as indifferent. That's the real horror of Azathoth: not malice, just a mindless thing dreaming, and everyone's survival riding on a song it doesn't know it's hearing.