You can do whatever you want in a dream. So, first learn how to lucid dream. Your dreams will become more vivid if you practice lucid dreaming. It really depends on how you feel about it. I love running.
We can still remember our dreams between the alpha and theta phases, and they have a direct relationship to the dreams we design in the alpha phase.
You can help LD4all! Jamie Alexander loves fighting giant gorillas, snowboarding down deadly mountains, and jumping out of helicopters without a parachute inside his lucid dreamsbut when he is wide awake he writes about lucid dreaming over at Lucid Ability Dot Com.