Do electricians dream of electric lights?

I had one of those dreams last night where it was dark in a room, I tried to turn on a light, and it didn't work. This is one the more universal dream experiences that there is. How do you know your dreaming? Try to turn the light on(or off). So what's the deal with that?

Well, a light switch in the 'real' world completes or breaks a circuit, causing the light to go on and off. In the dream world, there is no causal connection between the switch that you're imagining and the lightbulb you're imagining. They are both essentially stage props, framing whatever weird thing is happening around you. There is no circuit, no electricity, so why should the switch work?

I'm not sure exactly why this idea fascinates me, or exactly when it occurred to me, but I roll it around in my mind, now and again. I feel it reveals something about how dreams work, and also reveals something about our relationship with, and understanding of, modern technology. It seems to say, that for most of us, turning on a light is magic. I've wondered if the lights work in an electrician's dreams.