I don't consider dreams anything more than a result of biological processes in the brain. I love action-themed dreams and being able to do absolutely anything; it's like being in a movie! There isn't much else, but that's a good enough reason for me.

I also find that if my life "picks up", so to speak, I have less of a yearning to LD, so maybe there's a bit of a boredom/creative output aspect there as well.