Psionics involve the use of the mind to alter or command reality, typically through some understanding of a deeper truth about the universe or command over a fundamental law of reality.
It’s pretty cool, but I have trouble thinking of media where it takes a prominent role. The few examples that come to mind are:
Star Wars - The Force Mass Effect - Biotics/Element Zero technology Stellaris - Spiritualist Ethos Warhammer 40k - Psykers/Orks
What are some other examples of psionics in Sci-Fi?
WandaVision: She creates a new reality around herself.
Fringe: One of the main plot points are psychics controlling reality.
Push: A movie about a psychic people that can push thoughts into other people’s heads.
Legion: Mind bendy reality show where the main character can control reality.