What I find most disturbing is that it makes more sense than most creation myths, at least from my modern point of view; and it paints humanity hanging by a thread, like 20th century fears of being hit by a supernova, or a meteor, etc (of course we had apocalyptic themes through all of history though)
Or rather, anyone that had a dream with a person that said "don't wake up, or I will die" can relate
I love the idea of hanging by a thread, of complete existential and cosmic precarity. To again quote the opening of Call of Cthulhu, science will reveal "our frightful position [in reality]". I like the fact that, for Lovecraft, the answer to such terrifying revelations is mostly to draw the curtains and ideally brick up the window and insist "nothing to see here." The opening quote offers that as one solution, but it's recurrent in his stories. It's what the protagonists end up doing in the Dunwich horror mentioned in the blogpost.
Or rather, anyone that had a dream with a person that said "don't wake up, or I will die" can relate