To be passionate is to have an intense desire for something. This word is usually associated with people who are successful in life. So when a successful actor or athlete says to follow your passion, it simply means that they followed their passion of acting or running to be successful in their life. They say that when you focus all your energy into doing something, that you are passionate about, you would achieve greatness in life. Read more at - https://www.unboxproject.com/2020/07/how-to-find-your-passion.html