If you read about professional wrestling, you know it is generally a form of theater, with many elements of wrestling.
Modern professional wrestling usually contains hits and other techniques, which are modeled after various forms of global wrestling and boxing styles. Modern professional wrestling is a performance art where participants create a show with entertainment by a martial arts competition to simulate. The level of realism can vary, from the American World Wrestling Entertainment level to the highly realistic Japanese shoot-style or in Mexico dominant style mostly theatrical: Lucha libre.
But what is it: to be a professional? Being personal and the will to learn, to wrestle with complex issues, look at it from an other angle, think about it with someone else. Stretch yourself outside your comfort zone. Willing to learn and willing to teach, please add.