I figured it out

I figured out what that weird phrase I wrote in my notebook meant. I remembered it from Alan Moore's From Hell.

In the prologue of From Hell, two old men, former detective Frederick Abberline and psychic Robert Lees, are walking on the beach. Lees reveals to Abberline that he's a phony - he faked all of his "psychic predictions" complete with fake seizures. Abberline says that all the predictions came true, though, and this is what Lees replies:

That must have been it. I mean, From Hell is one of my favorite graphic novels ever.