So each night I meditated on fear, dark themes, and tried to generally give myself anxiety as I passed into sleep. Within one week, I had, literally, the scariest fucking dream I have ever had in my entire life. Not to go into the whole thing, but it ended with me running up some stairs in the dark and tripping, with my face landing on the top step pressed against a plastic bag that was lying there, still warm with the severed head of my best friend. I screamed in abject horror over and over again, my cheek pressed against the warm cheek of the head of the corpse, and the scream transitioned both my dream and waking state, as I woke up screaming madly. I was sweating and panting profusely. Yeah, didn't try that again. Mission accomplished though, I guess. File that one under 'be careful what you wish for'.