A male superhero represents a super intellect; thus to dream of seeing Superman, Batman, Spiderman, or whoever indicates that your mind is particularly sharp right now, and if there is a project you’re working on that requires a quick, agile, and insightful intellect, this is the time to concentrate primarily on it. Female superheroes such as Wonder Woman or Supergirl indicate a heightened supportive mind - and thus the dreamer’s intuition is operating at a very high level. Therefore at this time the dreamer should definitely believe in his or her hunches and go with them - no matter what the intellect tells you.
If the dreamer encounters both male and female superheroes, then both faculties of his mind are especially sharp right now. Use your intellect, but when in doubt, follow your heart.
If the superhero or heroine is flying, or performing a rescue, then your mental and/or intuitive faculties will save you from an uncomfortable situation.