Dreaming about having superpowers is one of the more purely wish-fulfilling dream types, but the specific power involved usually points to a real area of life where you feel underpowered right now.
Super strength
Often appears when you're facing a challenge that feels physically or emotionally exhausting — the dream compensating with a fantasy of effortless capability.
Invisibility
Frequently linked to a desire to observe a situation without being judged or involved — or, alternatively, a wish to escape scrutiny you're currently under.
Mind reading or telepathy
Usually points to frustration with a communication breakdown — a relationship or situation where you wish you could understand what someone else is really thinking without having to ask.
Time control (stopping, rewinding, speeding time)
Almost always relates to a feeling of being time-pressured in waking life — either wanting more of it, wanting to undo a recent decision, or wanting to skip ahead past a difficult period.