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?
The Stars My Destination and The Demolished Man both have this in some way, perhaps explaining the presence of Mr Bester in Babylon 5.
Philip K Dick has recurring themes of pre-cogs and telekinetics.
X-Men is extremely heavy on telepaths, and has quite a few telekines and other variants.