Whew! This took much much longer to edit than I expected. Still not sure if I got it completely right but this will have to do for now, I'm off to fight the Christmas shopping crowds. Every year I tell myself I'll get it done early, and every year I'm scrambling to find the right gifts at the last minute.
According to google there is no proven reason why some insects are drawn to light while others shy away from it. But here is an interesting theory...
"Scientists suggest that moths use the moon as a primary reference point and have the ability to calibrate their flight paths as the Earth's rotation causes the moon to move across the sky. (There is even evidence to support the theory that migrating moths have an internal geomagnetic compass system to guide them in the right direction.) So a moth's attraction to an artificial light or to a fire could be related to orientation, and lead to disorientation -- the moth wasn't "expecting" to actually get to "the moon" (the light source) or to be able to fly above it, so confusion results."
Maybe I'm overly sentimental, but I think that's kind of a beautiful metaphor. It reminds me of chasing a dream or something you want very badly.. when you achieve that goal sometimes you simply don't know what to do anymore and its often much different that what you expected it to be.