It fell open at "electricity" (apparently this means something to do with power). Well duh. Actually, I've never had a dream about electricity. My fantasies do not usually involve wiring plugs up and measuring voltages. (perhaps this means I'm not a proper engineer, but we will let that pass). Apparently some people do not dream in colour, although this may be because the licence is cheaper.
I looked up a couple of my dreams and they weren't in the 600 page book anywhere. I'm not sure if this is comforting or worrying.