Control.
Ability.
Self-empowerment.
Change.
Freedom or autonomy.
The experience of your “true” potential state of being (such as living without limiting beliefs or self-judgments).
For more clues, consider the type of power.
For example, the power of invisibility could represent a desire to know or understand, or to “disappear from” a responsibility.
Invincibility against harm can represent your ability to not let other people’s judgments or negativity influences “get to you” in real life.
Someone else having special powers can represent a feeling or fear of them having power over you, harming, or manipulating you.
See also: Witch; Disappearing; Future; Paranormal; Healer; Hypnosis; Invincibility; Muscle; Superhero