The "key" to develop your Telekinesis and Psychokinesis powers. Its a cheesy pun.

Want to learn how to develop telekinesis abilities? Telekinesis or TK is sometimes revered to as psychokinesis or PK. It is part of the spectrum of Extrasensory Perception, alongside Telepathy, Clairvoyance and Precognition.
Telekinesis is a WAVE.