After I lay down in bed last night, I had one of those thoughts that just pops up in the middle of the night, particularly after writing for a while in the evening (which I had been). I write this now more for my own memory than anything, but I hope it will be of some use to someone else out there.
The thought was that the purpose of every word in a horror story should be to make that story scarier.
This is a very simple idea that may be patently obvious to most of you, but it may not be to some. In any case, my intuition suggested that I publish it.