You actually find Lovecraft horrifying? I read a bit (color out of space, a short about ancient lizard people being wiped out by a vengeful god, and a bunch of descriptions) and found it peculiar and sad, but not horrifying. Too much Poe as a baby, I guess.
Lovecraft directly taps into my own madness and fears. He is psychologically quite similar to me and manages to actually express how bad xenophobia and the utter indifference of the cosmos feel. Worst of all, his more madness-focused stories like The Dreams in the Witch-House directly remind me of my own periods of insanity and paranoia. So it's really horrifying through its realism, at least for a certain kind of person.
(And he is the only one I know who does that, though I'm (intentionally) not very familiar with some related authors like Ligotti.)
Plus,...
Here's the new thread for posting quotes, with the usual rules: